Were the druids really bad enough that St Patrick had to “drive them out “ ?

This is the story my dad regurgitates every time I bring them up , how awful and dark their culture supposedly was and how they did human sacrifices . Can someone pls tell me something else about the druids besides this bullshit ? Personally I think the St Patrick story was Catholic propaganda and an excuse to commit genocide anyway

Edited to add - I’m sorry , my post was ridiculous and clearly ignorant. I guess I wanted to know if the Druids were as bad as we make them out to be that’s all . And why they seem to be singled out in ancient history as the ones who sacrificed, when other religions did so as well