Moralysis

A state of being “too moralistic to act on anything.”
Refers to a phenomenon in which excessive awareness of ethics and morals paralyzes one's judgment and ability to act.

Etymology: Moral + Paralysis

I think too much about the possibility of hurting someone no matter what I say, and I end up not being able to say anything.
I want to voice my opinion on this issue, but I'm afraid that no matter which words I choose, someone will criticize me...it's total Moralysis.”