Sort:  

No that would not be problematic at all.
If that person started spreading narrative that 'ugly people should suffer', then that would enter into the realm of 'problematic'.

That still sounds like an opinion.

Does it? Are you ears ringing?
But it doesn't matter what it sounds like. What matters is the result of the equation.

Publicly advocating, "all ugly people deserve to suffer" is a crime?

Did I use the word Crime? Or is that what you 'heard', in your head?
"Problematic".
Problematic-
1a: posing a problem : difficult to solve or decide
b: not definite or settled : UNCERTAIN
their future remains problematic
c: open to question or debate : QUESTIONABLE

Such a 'feeling' could lead to problems for society.
I am curious why you went straight for the Fallacy and inserted the word 'crime'? It was you who used 'problematic'. I stuck with that, and you somehow shifted it to crime. Very interesting.

It's a question.

Should problematic behaviors be criminalized?

Or, which categories of problematic behaviors should be criminalized?

Or, is criminalization a problematic behavior?

Ah I see. Problematic as in requires attention. Meaning that currently an idea is spreading that 'ugly people deserve to suffer'. The attention to be to see if it evolves into folks taking action. Causing loss/suffering of another is a violation of natural law. In fact it should be the only 'Crime' possible.

So it would only be 'problematic' if the 'idea' was spreading, but not a 'crime' unless they caused loss to another.