The problem with RMS is that he always assumes people to agree with his way of thinking. His uncompromising tone is also a big problem.

I know, programmers are supposed to be emotionless meritocratic robots, but this Old Boys Know Best attitude is precisely why RMS and GCC is losing user share so quickly these days: the extremist meritocracy of programming culture is actually highly male-centric, and it simply scares off all women and any men who are not sexists.

This is why LLVM is gaining so much support these days: it's technically superior, and its development community isn't sexist.