Again I think this is part of the issue, is people get so hung up on if they are perceived as racist, if that label is affixed to them that the broader mission of moving things in the right direction is lost. The thought or concern shouldn't end at "are all white people racist", that should be like a catalyst to "now what are we doing to move forward from that".
they're stuck in this weird dichotomy where they want racism to be a strict binary thing (which is odd when you think how strongly they feel about non-binary)
it's an on-off switch permanently stuck to ON for whites
"what, I'm not racist"
"yes you are, yes all whites"
but then they also want it to be a spectrum and something you can "move forward" from, to learn and to grow and to be better
well shit dog if there's a spectrum then maybe the white person you're accusing is 1% racist as opposed to the 50% racists and 80% racists out there
is it worth calling someone racist in the binary sense and diluting the impact of the phrase if they've got barely anything left to improve about their behavior?