I think this one sentence holds the key to the whole issue. I'm sure you can find a direct correlation between the guitar/folk music nonsense and the mass exodus from the Catholic Church.
I try to avoid the hippie “music” every week.
Two Sundays ago I was driving to church and heard Joan Sutherland sing a religious carol on the radio - it was beautiful.
Then I walk into church to the most awful caterwauling:
“Ma-reee! Ma-reeeee! Wa-cha gon-na name your ba-A-beeee!”
Maybe you had to be there but all I could think of was - ‘this is just disrespectful’.