In all walks of life we have to get along with people who have different opinions, and music is no different. I find it is far more important that the people I play music with are friendly and good company. Just because someone holds different views from you doesn't automatically mean they are a bad person, or an unlikeable person, and certainly has no bearing on whether or not they are a good musician.

Of course, someone's views may have a bearing on whether you find them to be good company. However if you insist on socialising only with people who hold the same views as you, you are going to limit yourself. If you only surround yourself with like-minded people you won't find yourself in situations where your own opinions may be challenged, and it leads to lazy thinking. And it has very little to do with making music.