Why is modern pop music today so terrible?

Only problem  is mom and pop were right about both .

Elvis was ZERO original ,
All he sang was black style and music from Mississippi juke joints .
Elling is force of nature original .

Passage of time doesn’t alter whether a musical piece is good or not .
What was an open mind at 20 would be an empty one at 80 .

I wallow in the past all day , every day , Bach is still perfection 400 years later ,

inna, there is a lot I don't understand , that's for sure .
One thing I do however is if I used your logic as a base 
 2+ 2 would equal 7 .

You have a broken imagination .

What you see depends upon where you are standing, or sitting .

Blame the record companies ? 
They still make intelligent wonderful music that ignorant people don't buy.
 

One of the truest old sayings is" The Good is the Enemy of the Best !"

If you settle for good it inevitability becomes fair which over time degenerates to bad

Bach is Best .

Jimmie Lunceford  Big Band 
Best swing band ever !

Only a very few people ever thought on Mozart of being to "busy".
The few just happened to be Kings and such .

Trans, 
Actually "church people" were among the greatest admirers of Mozart.
His many religious works were treated for what they were , sublime masterworks .