The wording and tone are common for broad agreement, both practical and moral (curtness, appeal to popularity, etc). Otherwise, one would normally use a wording that expresses the scope of one's tone, e.g. "Regardless of the issue, I think it's the right call to resort to firing to enforce this rule."

(It's hard to come up with a good example that demonstrates exactly what I'm talking about, because the topic is highly subjective, highly emotional, and has a few different angles. There are a million different things the parent could have said to communicate an attitude that doesn't imply an emotional, moral, or political distaste for the context of the protest itself. My example isn't necessarily "correct" for the parent.)