I don’t pretend to know your intent, but I’m sorry to say that to me this sounds like a bit of a loaded question. There are hateful people in every religion regardless of its tenets. People are capable of hate. We choose to hate; even Catholics choose to hate sometimes when they choose sin over God’s will. It’s a sad thing.
If I may, sometimes I get the feeling that Catholics online get the feeling that anyone that disagrees with their theology hates the Catholic Church. That is most definitely not the case. If anything, to me it seems like a case of some people having a thing skin. I disagree with the Catholic Church and side with own Church ten times out of ten when it comes to inter-Church debates but that doesn’t make me some sort of fire-breathing Catholicophobe. Far from it, in fact. If anything in my own life experiences, it’s been Catholics who have been rude and judgemental more so than my own kind. But I’m at least old enough to realize that my narrow life-experiences do not translate to bigger trends. Maybe if other people realized that, we wouldn’t need to have this discussion about other groups.
I have to say, though, I see where you’re coming from. I too share a frustration with some Protestant groups and their haughty triumphantalism. My blood boils when I read about missionary groups from the First Antioch Baptist Love in Jesus Christ Amen Church go to Greece to preach Christianity to the Natives, disregarding our own ancient Church as like some off-branch of satanism and as if Greeks have never heard the Bible before. I just want to scream out “Hey newsflash, buddy: it was my Church that compiled the Bible. Some of our bishops have vestments older than your ‘Church’—don’t play this game.” Likewise, I’m Facebook friends with an Anglican/Episcopalian who rejoiced at England’s decision to allow female bishops and joked that the Catholic Church is 500 years behind, “as always.” I wanted to say something here as well, but I didn’t, because what good would it do? All we can do is pray for them, and for ourselves.