Not sure if this has been pointed out yet, but could this have nothing to do with Turmp and everything to do with people taking minorities more seriously about their claims of racism because of various factors (i.e. when one person says something then a deluge of others go "yeah they did the same thing to me" like women with sexual assault/harassment, or the people recording the crazy racist shitbags harassing them)? That stuff has really taken off the past few years (that just happens to coincide with Turmp being in the White House).
I know of quite a few people that used to dismiss that stuff who now are seeing how it absolutely has been happening, so if they had been asked their opinions about it even just 5 years ago, and then now, they probably would've given very different answers. No joke, there were people that legitimately felt "America doesn't have a racism problem, we have a black President."