[Steelfish]

I suspect many of them are ex-Catholics who don’t and cannot relate to the serious liturgy and instruction of the Catholic Church. Clapping, dancing, swaying, rumba are all part of the Rick Warren theology.

[Clemenza]

You mean they don't respond to the ossified, Eurotrash, Novus Ordum liturgy of the Romanists, nor do they care to join the Dungeons and Dragons-esque cult know as the Tridentines?

The Catholic Church is General Motors, these "megachurches" are Wal-Mart if Wal-Mart were not centrally controlled from Bentonville. I have no use for either myself, and don't care for those "members" who try to steal constitutionalist American conservatism, which has nothing to do with Romanist statism, or Rick Warren Happy Clappy tripe.

[RoadTest]

“I suspect many of them are ex-Catholics who don’t and cannot relate to the serious liturgy and instruction of the Catholic Church. Clapping, dancing, swaying, rumba are all part of the Rick Warren theology.”

Neither one (”liturgy” or swaying) is going to get them anywhere with God.

[HereInTheHeartland]

“I suspect many of them are ex-Catholics who don’t and cannot relate to the serious liturgy and instruction of the Catholic Church. Clapping, dancing, swaying, rumba are all part of the Rick Warren theology.”

Wow!
That's huge and probably erroneous broad brush.
Most are probably from mainline, liberal infested churches.

Some of the mega churches do a very good job. They are not for me; as community with other believers would seem to be impossible in these churches.