As a someone from the US who is atheist and probably would be lumped in the "progressive" bucket, I can provide my own perspective which might be helpful:

I bristle at taking an action which would support (morally, financially, etc) currently living fascists and/or Nazis, whose ideologies and in certain cases the people themselves (e.g. Musk) are actively working to dismantle and destabilize the government of my country.

In that respect, using software written by someone like Andreas Kling (Ladybird creator) or Musk, DHH, etc is much more reprehensible to me than admiring the art of Picasso, who was a horrible person but who is dead and cannot hurt anyone else.