What's the harm (logical fallacy)

What's the harm is an all too common emotional appeal argument employed by cranks and woo peddlers (particularly alternative medicine and New Age woomeisters) used to defend the usage of their particular bullshit. The line of reasoning is that because there is nothing inherently harmful with something, that it should be tried. It may be true that a harmless thing might be beneficial, but its harmlessness is not standalone proof; further reasoning or evidence is required. When used by woo peddlers and their advocates, it's often a poor escape hatch argument. 
It is commonly used after the rest of their BS claims have been thoroughly refuted. As such, it is a form of escape hatch.
==The basic argument==
[Insert woo/crank idea here] hasn't caused any harm.
Therefore, [Insert woo/crank idea here] should be tried.
While it's not always necessarily a bad line of reasoning, as there are plenty of activities that are inherently safe and enjoyable, such as listening to music, trying a new sport (which, by the way, is not harmless, as anyone who has been injured while doing sport can attest to), painting, etc., when used by woo peddlers, it's a means to defend their practices. Unfortunately for them, there actually are inherent harms associated with their practices.
==The harm==
===Waste of resources===
You (and possibly society at large) are essentially losing time and money on something that is ineffective, as opposed to spending said resources on an actual solution. This benefits no one but the crank who tricked you, who will happily take your cash and runOrac points this out to an acupuncturist (or stick around for more, if you're of a mind).
===Supports ignorance===
No one benefits from ignoranceCouldn't have said it better myself (except for charlatans, who can use it to sell bullshit), and in many cases it can be downright dangerous. Spreading misinformation to desperate people who actually need a cure is both dangerous and unethical, as you may very well be endangering their lives.
===Deprives an individual of an actual cure/solution===
This is where the real harm comes into play: people trying unconventional solutions often avoid actual solutions to their problem. For example, when Suzanne Somers had a breast tumor removed, her doctors recommended she undergo chemotherapy as a precaution, in case there were metastatic cancer cells they missed. She refused, because she was taking fermented mistletoe extract "instead". Luckily, she remained cancer-free, but it could have gone the other way.
Telling a cancer patient to try (say) cannabis oils, as opposed to evidence based medicine, and attempting to defend the practice with 'what's the harm' is evil and fallacious, as you actually are endangering another human being at that point. Even if they are using woo treatments in tandem with legitimate medicine, you are still wasting resources, as per point #1.
===Criminal justice cases===
Especially in high-profile crime cases, when a suspect gets taken into custody early, published as the likely offender, and ends up receiving disproportionate focus from the media, people sometimes ask "Well, what's the harm?" If they were somehow linked to the crime or were in the exact area at the time (and especially if they seem really shady), don't they almost deserve to have their faces plastered in the news and their role in the entire mess focused on?
The problem with this reasoning is simple. When investigators and the general public get stuck on a suspect early in an investigation who actually turns out to be less and less likely to really be the culprit (or lone culprit) as time moves on, the actual offender is left with far less heat. While it may be comforting to watch the news and see numerous suspects lined up right away, and while the police may score a PR victory for "demonstrating" to the public that they're on top of things, the fact remains that less time and energy gets devoted to finding the real offender when the bandwagon takes over.
And the sentencing of an innocent man does more than just that. It also stops the police from looking. They caught the guy, right? As a result, for every trial that turns out to be caught up with the wrong person, a guilty man walks unbothered in the streets, perhaps never having justice served to him as a result of the delay and confusion, possibly giving him time to strike again. Sentencing the wrong person doesn't just ruin the life of an innocent person; on top of that, it essentially gives a pardon to the real criminal.
==Examples==
===Donald Trump===
In 2016, Donald Trump used the equivalent of "what's the harm" in an attempt to sway African American voters:The problem with Trump’s question to black voters, ‘What the hell do you have to lose?’ by Max Ehrenfreund (August 24, 2016) The Washington Post.
The evident likely harm for this example is Trump's long history of racism directed at African Americans:Donald Trump’s long history of racism, from the 1970s to 2020: Trump has repeatedly claimed he’s “the least racist person.” His history suggests otherwise. by German Lopez (Updated Aug 13, 2020, 4:00 PM PDT) Vox.
*1973: Housing discrimination
*1980s: Business discrimination
*1989: Taking out a full-page ad in The New York Times, calling for the death penalty for the Central Park Five, who had been accused of a brutal rape, before they had even been convicted — the five were later completely exonerated
*1991: Criticizing the hiring of an African American accountant in his business based on his race
*2004: Firing an African American contestant on his TV show The Apprentice for being 'overeducated'
*2005: Proposing a race-based version of The Apprentice that would have been called, The Apprentice: White People vs. Black People
*2011: Race-based birtherism directed on Barack Obama
*2015-: Retweeting white nationalists, racial stereotyping, racist dog whistles, implying that the Nazis at Unite the Right were good people, stigmatizing Haiti as being a source of AIDS, calling African countries "shitholes", saying Kamala Harris "doesn’t meet the requirements" to be Vice President
==See also==
*Wishful thinking
*Logical fallacy
*Quack
*Not as bad as
*False hope
*Bad faith
==External links==
*What's The Harm? catalog by Tim Farley
==References==
Category:Conditional fallacies
Category:Fallacious arguments
Category:Arguments against evidence-based medicine
Category:Clichéed sayings