“The inroads of modernism into the church killed ninety percent of the mainline denominations “
It wasn’t/isn’t modernism that is killing mainline denominations. It was falling away from God’s Word.
If you bore the hell out of kids it doesn’t mean they are saved. It means they leave the church as soon as they leave Mom and Dad. Some 80% of children stop attending church regularly once they have left home.
So church and God should consist of “entertainment?” to keep the little kiddies awake? Don’t think so. We have thousands of believers on this site that never got anything close to entertainment. However, that is one of the things wrong with the world today, your kind of thinking