We all agree that punching fascists in the face is objectively good, but if someone was walking through a school or church yelling that we should punch fascists then you would probably feel uncomfortable.

It's an aggressive t-shirt, even though it portrays a morally appropriate sentiment. I agree with the message, and personally don't think it's inappropriate, but I would not be confused why some people might not want to see it, and probably wouldn't wear it to my kid's preschool.