The responsible thing to do in a situation like this is to cordon off the protesters in some sort of free speech zone where they can make their point while Trump makes his. This is what's done at most rallies and big events.
Trump is a showman, and the protesters are part of the show. Trump knows this, which is why he lets them into the events and eggs them on from the podium. The problem is that the Donald Trump for President Reality Show is actually real, and people can and do get hurt.
Sadly, the "ironic" Trump supporters on the forum don't care as long as it isn't affluent, white suburbanites who are getting hurt.
Ironic Trump support is pretty much the classic example of Atlas taking a somewhat funny meme/joke and beating it to death. And I can certainly see why it's a lot less funny if you aren't white, native-born, or male.
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