I don't consider myself to be a "leftie," I'm more of a libertarian whose social views are somewhat liberal. I find myself siding with the left over issues like conservatism, Trump etc. The main difference is that I'm not against capitalism and would never consider myself a socialist or a Marxist. That being said, some of my favorite folk artists are die hard lefties (Andy Irvine, Dick Gaughan etc) and despite the fact that I would probably be at odds with them in an argument about economics, I don't think any less of them as people for holding different views to mine, and I have never let it interfere with my enjoyment of the tunes that I like. I do, however, tend to skip past the overly political songs. It's not so much that I'm "offended" by them, or that I feel like I would have to agree with the sentiment in order to enjoy the song - it's just that in my experience, overly political songs tend to be less interesting musically (e.g. heavy strumming instead of nice fingerpicking etc).