I’d be all for a return of mainline Protestantism. I don’t attend currently but grew up in the Christian Church Disciples of Christ. Always sad to see the Methodist and restorationist and other pews full of only seniors. Although I suppose I’m part of the problem.
No kidding. The sick man of Christianity - mainline Protestantism - played a vital role in our society for a long time. We were the main ones who stood up to slavery, to the mafia, to segregation, and half a dozen other vile practices. I like the Catholics and the evangelical Protestants, but American Christianity is a three legged stool that won’t work right if one leg is so much smaller than the others.