There's tons of evidence:
https://www.newyorker.com/tech/annals-of-technology/why-your...
If it's "presumptious" of me to point that out, I don't care. Only ever telling people what they want to hear is not helpful.
> Is the casual racism completely necessary?
Is the casual accusation of racism completely necessary?
It has nothing to do with race, more with history. Crab mentality is very common in the former "eastern block".
> Couldn't you just stick to the critique of the work rather than the person and his nationality?
I'm not criticizing the person's nationality, that's not their choice. I'm drawing the distinction between the individual and their nationality. You can be a proud Pole, doing polish things, espousing polish ideals and mannerisms above all else, whatever. You also can be an individual in global society who happens to be from Poland.