I am quite happy to accept that there are aspects of racism against POC, particularly in a US context, that I don't understand, which was why I was asking for more information.
drspouse - your link doesn't seem to show what you claimed it shows. You said, "it [blackface] has been used as the costume when attacking/lynching Black people", but your link seemed rather to show that someone was wearing blackface on a photo next to someone wearing a KKK outfit, not that blackface was actually worn during a lynching. (Which I have seen zero evidence for.) The article you linked to went on to talk about blackface being used by white people to portray a negative stereotype of black people which underlay discrimination against them - but this doesn't seem to me to be meaningfully different to the negative stereotypes of women (as highly sexualised 'slags' etc) propagated by drag culture, which has likewise underpinned centuries of discrimination against and attacks on women.
As discussed above, I was unconvinced by the argument made in the Twitter thread linked to upthread, stating that comparisons between blackface and womanface should not be made, since the Twitter user's main argument seemed to rest on a comparison with how the Holocaust is discussed, which was simply factually incorrect. I am therefore sceptical as to how much trust one should place in the argument being made overall.
So I'll keep an open mind on this - but as yet, have yet to see any convincing evidence that there is a meaningful difference between how blackface and 'womanface' are used or their impacts on black people and women.
What is clearly different, however, is how blackface is now regarded as completely socially and politically unacceptable, especially by progressives. Whereas by comparison, 'womanface' ie drag seems to be becoming more and more popular, especially among those who would call themselves progressive.
And I really cannot see any valid justification for that. Other than that the latter affects women - and women don't matter.