There are some flaws in your thinking, according to the facts we have.
First, the denominations that have ignored Scripture and Tradition and accepted divorce, abortion, gay "marriage" and have tried to adapt to the world are failing: the Episcopal, Presbyterian, United Church of Christ and Methodist Church are all hemorrhaging members and many of them are going to go extinct in a few decades if trends continue.
https://www.washingtonpost.com/post...churches-are-thriving/?utm_term=.574c7ecdfc5d
@Capernum
Second, regarding how people dress in Mass, Scripture says "worship the Lord in holy attire." I feel like many people view Mass with a lack of reverence and dress like they would at a football game. I understand your Priest's mentality because half the men at my Church wear jeans and don't even try to make an effort.
Third, if Priests were married, they would be even more burnt out. Do you know how much effort it requires to be a good parent and spouse? How can a Priest do Masses on weekends when he had to go to four soccer games? There is also the huge financial burden of being a parent, too. That would impact everything.
Jesus was clear that Christians had to pick up their cross. Christianity isn't about adapting to the world.
To quote Lute: Bottom line, the Churches that adapt to our culture are ignoring Scripture, tradition and as a result, they are dying out.