During a frustrating argument with a Roman Catholic cardinal, Napoleon Bonaparte supposedly burst out: “Your eminence, are you not aware that I have the power to destroy the Catholic Church?” The cardinal, the anecdote goes, responded ruefully: “Your majesty, we, the Catholic clergy, have done our best to destroy the church for the last 1,800 years. We have not succeeded, and neither will you.”
In many ways, American evangelicalism is somewhat stronger today than it was in, say 1955 - certainly more mainstream and influential in the culture as a whole. But, the increased strength of evangelicalism hasn't increased fast enough to compensate for the total collapse of mainline Protestantism and the pretty steady weakening of my own Roman Catholic Church.
Just as the superstar pastor model can have its problems once the superstar pastor gets old or has a scandal or something, the house church model... there's a reason that the house churches of the New Testament era grew up into a more institutional faith down the road.
I read a lot of G.K. Chesterton. It was a fairly conventional intellectual path to the Catholic church, I would say.