If you live in a very Catholic town and you attended this judgemental and hateful church for 11 years I find it interesting you never picked up bad vibes earlier on.
That’s a very good point. I am suprised it would not have been foreseen also. These kind of believers don’t just one day go off on anti-Catholic sentiments. It’s something that will be evident in their preaching and fellowship. Though, it may not be personally experienced in such an “in your face” sort of way.
Anyway, my experience was overall not bad. I converted as a young adult (23 yrs) and I was actually invited by a friend, who was involved in the Evangelical Free youth group, to help as a leader! I did this for 3 yrs. I always respected staying within the teachings of their tradition. Eventually, I privately confronted the youth pastor over a couple concerns I had (OSAS was taught, and I never knew of any of the children being Baptized, even though many would accept Jesus as their savior). To me, it was not monumental, and could have been worked through, maybe. But it was the start of realizing that I needed to offer my work and devotion to my own Parish. I did appreciate much of the ministry there. And now, that friend, who invited me, said it would never happen again, just because things are quite a bit different. I think that church has become more formal.
I even had a strong disagreement with that friend who was engaged with a man who had been married and divorced. I genuinely cared enough for this friend to admonish this decision. It caused a division between us. I am a little upset with her leaders for approving this, but I no longer know if they were married or not.
Anyways, one of the worst and only negative sentiments I received was from my mother who, after I told my parents of my decision to be Baptized and join the Catholic Church, said, “But we raised you Christian!”

Since then, there has not been much of anything like that.