It is my observation from my experiences with family members, acquaintances and my work with converting and former Protestants, that we see Protestantism played out at a micro level in the church shoppers and the store front and house church congregations. The inability to accept an authority other than themselves always leads to doctrinal disputes and animus and personal enmity when others refuse to accept their interpretations and doctrinal theories. Of course there are exceptions, but too often for these, the purpose of "Sunday go to meetin'" is not about God, community and worship, but about ego.
Can’t say I would agree with that assessment. I used to go to a Mennonite Church for about 4 years, from 2001 to about 2003. After that I shared time with the Catholic church for a year, and then went exclusively Catholic in my last year in RCIA from 2004 in the summer onwards.
I’ve attended non Catholic services three times in the 8 years since then.