And perhaps a slightly more liberal approach would be that racism applies to ideas/worldviews/modes of communication rather than baked into people.

There is research to indicate people respond to visual cues as an indicator of in-group/out-group tribalism, but that mental software can be overrun by observing the individual as opposed to categorizing the individual into a group. https://greatergood.berkeley.edu/article/item/look_twice
This would be connected to one's communication that can be overcome.

As well as this, G. Loury describes racial stigma, which is to observe existing race gaps as a combination of past racist policies, exacerbated by present egalitarian/meritocratic policies, where the inequality is incorrectly ascribed to innate, immutable characteristics of race, rather than a consequence of an individual/hobbled community starting 50 meters behind everyone else in a 100m sprint. https://www.irp.wisc.edu/publications/focus/pdfs/foc241a.pdf
This would be connected with one's worldview which can be overcome by understanding racism within history, as well as global weather distributions, and geographical resource distribution (Guns, Germs and Steel by Jared Diamond).

And I don't think I need to cite anything about racist ideas not covered by the above can be overcome by using enlightenment values and unifying messages.

I'd say trump has proclaimed some very racist ideas which run against enlightenment values and consequently are repulsive. There are obviously some percentage of followers of trump that hold worldviews that I'd find repulsive due to my alignment with enlightenment values. That doesn't mean the ideas these people hold are immutable.

Whilst my main political priority is minimising inequality at large, which in this context will disproportionately assist populations currently in poverty and resolve a lot of racial tension and racial stigma, policies that DON'T assist communities suffering from poverty should not be assumed to be racist, but rather are exacerbating gaps generated from previous racist(read discriminating by skin colour) policies. Whilst it might be unpalatable, I believe it is more realistic when you consider a large part of the American dream is about pulling yourself up from your bootstraps.

Also, Trump holds positions on economics that resonate large swathes of the American populous in communities that have been decimated by both automation, and job exportation, as pointed out by Andrew Yang. And as scarcity replaces abundance, individual's sphere of compassion shrinks. As a general example, consider who you would be considerate to if you were in an unescapable location undergoing famine.

Whilst I appreciate the desire to simplify the world around you which all humans try to do, I think to try to compress an individual's political worldview into 3 binary dimensions is dropping the majority of an individual's motivation.

I'd say that the main cause of racial gaps is historical institutional racism, that are exacerbated by today's egalitarian/meritocracy policies practices. And since the 1970s, corporate America began it's ascendance to decimate the middle class, rural America, collective bargaining, profit over economic equality, and almost completely corrupt the political system. This means to me that the biggest problem in America is political corruption and corporate power/corruption which results in increased inequality. Solve that and I think America's other problems of racial stigma, various important gaps across populations, lack of national pride, strength of democracy locally and globally, and the decreasing ability to pursue happiness in America would be much easier to solve.

This is just one Australian's opinion though. I might be wrong about the whole thing.