I would love to say you're wrong, and that it's just the sites you've looked at, but I think you're right :(
I think there's a few reason:
*]We're a soft target - we won't hit back.
*]We're counter-cultural - we are against the whole culture of death and we call it like we see it
*]We're not shy about proclaiming the authority of Church teaching
*]We refuse to compromise on certain issues - like married clergy, women priests, homosexuality
*]We've got a misunderstood and mis-represented history - Crusades, Galileo, Pius XII and Hitler
*]Other Christian Churches preach against us - the Church is the Whore of Babylon etc.,
*]Our leaders wear funny clothes
*]We challenge people to live lives that are holy and blameless in God's sight
*]Our Church has been rocked by scandals, but we still won't back down on sexual issues.
*]We admit that our people can be wrong (sinful), but not that our faith is wrong.
*]We have the historical right to claim that we have contributed an immense amount to the advancement of science, but we refuse to accept the conclusions that many scientists reach.
*]We don't behave like victims, but like those assured of final victory.
No wonder we upset the rabble, the intelligentsia, the cultural elite and political leaders.