All the bastards trying to cancel Roger Waters. If you don't like him don't go to his concerts, don't buy his records and don't stream his songs. It's about as simple & clear cut as that.
Anyone that starts an letter or press release with wording similar to "I believe free speech and freedom of artistic expression, but....". You either do or you don't, and you don't. 'But' means that you you only agree in it if it corresponds with your world view, morals or aesthetic, and for the most part that's not freedom of or from anything.
Plus, people must have been sleeping since 1990 in Berlin to miss what happens in the stage show: