I’m sorry for your experience on this forum with Catholics. I always wince when Catholics behave badly.
But, speaking truthfully, I could write the very same words that you did in your post-—except where you write Catholic I would write Protestant and where you write anti-Protestant I could write anti-Catholic.
I, as well, am no longer indifferent-—to Protestantism.
Concur, the FR Religion Forum reflects very poorly on Protestantism. The message presented is simple, and often vulgar, antiCatholicism.