I think it is not so much that people want to be angry as that they want someone to blame for everything that is going wrong in their life, someone who is not them, not someone powerful enough that they couldn’t do anything against them anyway (such as the people actually responsible for most of those issues) but someone they can hurt to make themselves feel better, even if that doesn’t solve their original issue.
Maybe, but more importantly there are no people or organizations so good that everything they do is good by association nor any people or organizations so bad that everything they do is bad by association.