I think that, generally, people hate Catholicism, not Catholics. They hate the religion, not the people. At least, that is my experience. And I don’t think they hate Christ, I think that they think they’re standing up for what is right. I was one of those people who hated Catholicism at one point. I hated it because I thought it was this evil entity that was leading so many people to Hell. I never hated actual Catholics, and I thought I was doing a good service to Christ by speaking about my hatred for Catholicism.
No. If they want to learn about Catholicism, they’re free to come to a Catholic site such as Catholic Answers Forums. Trying to convert them there would be like trying to invade a foreign territory whilst vastly outnumbered. They won’t take you seriously. Invite them to learn about it, but don’t try to convert them.
The reason so many people hate Catholicism is because they believe false things about Catholicism. They think we teach things that are clearly against the Gospel, and we really don’t. The best way to dispell the hatred is to politely educate those who have such misconceptions about the faith without being pushy, inviting them to learn about the faith, and living out the Gospel while being open (but not forcefully open) about being Catholic.