What colleges are super liberal, artistic, social justice focused and not preppy?

That’s exactly right @merc81, the collegenavigator site lumps together “visual and performing arts”, and it includes everything you listed. It also includes film studies, for those schools that offer it (that’s a big component of Wesleyan’s total, for instance). Love that site – one of my favorite resources for gauging the strength/size of various departments at schools.