You can have musical joy without agreeing to the lyrics. In fact the musical part is a lot more important to me than what the artist is singing about. Behemoth for example is more or less a satanic band, but I don't believe in hell&heaven and thus it's nonsense to me but Behemoth is just one of the best metal bands I know and, yeah, I would even listen to them if they all of the sudden change their topics to Nazi lyrics. I can easily differentiate between music and the message.
I understand some people have a hard time to enjoy music they don't lyrical agree with though.
Btw: Despite the bad 480p quality you can hear how well they handle their instrument, it's like a 100% copy of the studio album. Very high skilled musical artists indeed.
I love how we have a discussion and at the same time make connections to videos of bands that are mentioned in our discussion. xD