I think singing is a form of storytelling, and I'm happy to tell stories where things happen that I don't approve of, but it's a different question if the story is clearly pushing an agenda that I can't hold to. For the same reason, I don't feel I can sing Irish rebel songs, etc.

I wanted to post because I'm surprised The Bitter Withy has been brought up here; a) I learned it as "you are but some poor maid's child born in an oxen's stall", not "poor Jew's child", and b) it's clear that the sympathies of the song are with Jesus who's being picked on by three snotty kids. If they did call him a "poor Jew's child", then that's a part of their being snotty and offensive, and they promptly get drowned by Jesus for it. Hardly a ringing endorsement of anti-semitism!