It's just not worth it for me to engage like that anymore. How about bringing a discussion to what I said rather than asking for random proof of what I said. Look literally anywhere on the internet and you'll find it pretty easily.
Hell the AP News will capitalize Black but not White: https://apnews.com/article/7e36c00c5af0436abc09e051261fff1f
Stuff like that is just one of hundreds of examples. That article is what I'd consider more of a "casual racism" whereas I also see a lot more direct racism as well.
I'd personally rather be in a world where someone doesn't feel a need to specify someone's race before everything. People will add in race when it has no relevance or facts behind it.
I am sure you have heard the phrase "privileged white male" before. I can't even count on both my hands how many times I've been told that. And I'll be told that without the person even knowing my level of privilege, my gender, or my race. When you oppose the current politically correct fad you'll be called racist and people will assume your gender and race and use it as a derogatory/racist statement. It will be used to dismiss and invalidate an opinion.
For me personally my test is often pretty simple. If someone tries to dismiss an opinion by calling someone a "privileged white male" how would that be any better than dismissing someone's opinion for being black? To me they both are racist and just as bad in my mind. Neither is acceptable. Yet in todays society we know which one would be acceptable. As long as it's shitting on a white person or a male you're good to go.