If they break the law, which nearly every protester does, then yes they should be punished. The fact that folks let these fools get away with this crap without punishment for decades is part of the damned problem.
Cruz, you are done.... I think at this point, even Texas is embarrassed by you.
At least they're consistent in their beliefs. Even though Illegal Immigration is breaking the law, these same people are supportive of ignoring the law and legalizing these lawbreakers.
If it benefits them, the law be damned.