Not necessarily aiming this at anyone, but…if a church has a great schola (choir), it’s hard for people to jump in. People feel self-conscious about assuming they know the subtleties of chant of the Latin hymnody.
However, as the vast amount of churches around here do not even consider allowing for this, it leaves a cantor or a basic choir to lead hymn singing. It would be sort of stubborn to refuse to join them in musical prayer.
For that’s what all singing in church is: musical prayer.
Granted some of the music choices are sometimes kind of wonky. But that’s a problem for the pastor, not the people in the pew to argue about. It’s kind of making a pronouncement on his choice of vestments.
I see Mass as an invitation to communal worship. A chance to receive the Eucharist personally, and yet, among my parish family.
Even people with limited abilities should at least try to sing. God doesn’t mind.

People are sometimes spoiled by the great music available in some locales.
It’s certainly not the case everywhere. Be we have to support those who at least try, no?
For every person who hates a certain piece, there’s another one who loves it.
Someone mentioned “Eagles’ Wings”. Myself, pretty sick of it. Went out of fashion a couple of decades ago. But whenever I play a funeral, it’s the first thing grieving families ask for. It means something to them, so we do it. It doesn’t matter if I like it or not.
Peace, all.