“Shallow understanding from people of good will is more frustrating than absolute misunderstanding from people of ill will.”

Simplified Meaning:

When people who mean well only understand a little bit of the problem, it can be more annoying than when people who don't care don't understand it at all. Imagine you have a serious issue, like being bullied at school. If your friends, who want to help, only kind of get what's going on and give you advice that doesn't really help, it can be really frustrating. It's like they think they understand, but they don't really grasp how bad it is, so their help isn't effective. On the other hand, if someone who doesn't like you at all completely misses the point, it's less annoying because you didn’t expect them to help in the first place. The key idea here is that sometimes, well-meaning people can cause more frustration by not fully understanding the situation. To apply this, if you want to help someone, make sure you really listen and understand their problem completely before trying to help.