Because in America, that statement is so heretical and antithetical to what the average American thinks America is, that most people probably wouldn't even be mad at you for saying it: They'd think you were legitimately unwell/insane.
It's on the same level as saying "I hate liberals and am not conservative".
Great work. I read all of it. My only criticism is the mention of Einstein and Salk, who were living under capitalism even if they didn’t believe in it. Earlier thinkers and inventors (like Da Vinci or Archimedes) might be better examples.