Firstly they were hated because how holy and good they were. This was golden age of this order, age of real science, real preaching, real spiritual and corporal renewal etc. But, o great blessing and curse, they were obedient. They feared no power of the world, no matter how strong they were. And powers of the world baned Jesuitst from thier countries and forced Pope to disband order. And then, o great tragedy, Prussia and Russia retained them, twisted and corrupted so when they were officaly resurected they were difrent, wordly.
There are good jesuitst probably. Traditionals, with Ignaceian spirit in them. But they are few.