I definitely see where you're coming from! But the fact that LW says Lynn "understood" when he asked her to stop playing Christian music, and she stopped without pushing back on it, suggests that – based only on what LW reports – Lynn may be clueless but not actively hostile, and may treat the request to control the kid the same way she treated the request to turn off the music, especially since it sounds like Lynn may not be aware of the kid's behavior. If Lynn had that sort of persecution complex about it, I'd imagine she would have pushed back about the music.

To clarify, I'm not saying Lynn for sure isn't hostile – just that the facts LW gives us aren't enough to lead me to that conclusion. Plenty of non-evangelicals, even including some gay people (e.g., me!), listen to Christian artists like Matt Maher or Lauren Daigle, and although I have the common sense not to play religious music at work, common sense is...well, not all that common!