Trump says US must get 'tougher on street crime' in response to Philadelphia

Oh really

Clamping down on crime is not social engineering.

Making something criminal that isn’t really criminal would be an example of social engineering. (And maybe that’s what you’re thinking of, in which case, I agree.)

Regularly having events where screaming fans can adore him.

This is another thing that I am going to put on the list of “What if Obama did this”

“Something that isn’t really criminal” carries a lot of baggage in need of inspecting. You’ll find that there will be quite a bit of disagreement over the premises used to evaluate these statements.