Your analogy isn't correct. Physics isn't used as a catch-all to explain things that haven't been researched.

And I never said the 10% delta wasn't awful. That is of course a horrific thing that must be addressed. It's also a specific issue that can be measured and solved.

Systemic racism is used just like God was when I, growing up in the south, had to defend my belief in evolution. The favorite weapon of the biblical creationists is termed "God of the gaps". They would look for some biological feature (their favorite was the human eye) that wasn't fully explained by evolutionary science, and then claim that gap in science had to be filled by God's existence.

Systemic racism is "racism of the gaps". Every discrepancy between two arbitrarily separated groups is termed evidence of some non-specific, internal bigotry that absolutely must exist. The fact that various cultural groups behave and raise children differently is ignored. Southern whites are much poorer than norther whites. Must be bigotry. It couldn't be cultural differences.....

Women are radically underrepresented as victims of police violence. There must be systemic bigotry towards men by police. Asians are underrepresented in police killings. Police must systemically favor them.

We know that this isn't true, and that women are underrepresented in police killings because they are dramatically less likely to be in confrontations with police. But this logic is willfully ignored in place of the "systemic racism" canard when looking at black male overrepresentation in police killings. It's exactly what you would expect when people who seek power instead of truth are dominating the conversation.

And since you are defending activists willfully misrepresenting data to feed emotional narratives, let's talk about the fact that BLM's hyperbolic language around police killings of black men has caused a large percentage of the population to think that police are a statistically significant threat to the lives of black men in America. The other impression left on the minds of the public is that black men are exclusively the victims of police violence, when the data says otherwise.

https://mappingpoliceviolence.org/nationaltrends

Here, you see that 76% of the people killed by police are non-black in the US. And yes, black men are overrepresented, and so are latinos. Asians are underrepresented. Activists have SUCCEEDED in manipulating the public on this, and have created social pressure that academics are yielding to.

Ask yourself why you have to use Google to find the name of a Latino who was unjustly killed by police in the last 5 years, but you (if you are like me) can list the names of multiple black men unjustly killed by police in the same time frame? Do you think that discrepancy in knowledge is natural, fair, or just?

The ethno-centric activists have taken the very real issue of police violence, and turned it into a race specific one, needlessly. Racial issues are easy to weaponize, and that's probably the motivation, but it comes at the cost of actual truth. Police kill citizens of all colors with impunity. George Floyd's murderers were arrested a day later. The killer of Daniel Shaver (the second most egregious police killing video I've seen after George Floyd) was given early retirement with a full pension.