95% of what you hear about Hollywood, LA and the industry, is nonsense written by people on the outside outside of the industry.
My limited experience of LA, was that is was full of lovely people who were keen to make the best films that they possibly could. I found people only to willing to meet with me and help me pull projects together. If anything, I found it a lot easier than the UK scene where everyone is back biting over the same, poor arts funding to make films that nobody ever sees (and in most cases rightly so)
LA controls all of the major routes of English speaking distribution, without distribution film making is just a very expensive hobby.
European film making at its best is phenomenal, but so is main stream American film making. Hollywood has a thriving indie scene, you only have to look at films like Animal House and Living in Oblivion to see that they do that stuff just as well as we do.