to completely fill the location of a Trump rally, and have them arrive so early that they are the first ones into the venue, so that when Trump enters, the entire audience is nothing but protesters.

That is what happened.

so that Trump faces a wall of boos when he takes the stage

The arena looks 2/3 against Trump, minimum.

and in such numbers that there is no room for any Trump supporters.

(not the enemy but) the distraction from the good.

Look at what they did! Spectacular. They just WALKED IN LIKE ANYONE ELSE, and then they were the MAJORITY. Not a surprise.

especially if covered live.

I wish that they had waited until Trump got there.

This isn't a conspiracy (which in this context can work with about 30 at most). This is hundreds, thousands of people walking on in. They're not the Borg.

It wasn't purely spontaneous.

Nothing like this could be spontaneous. But the pages are auto-organizing, as these things need to go, and that's an indicator of general mood.

All I am suggesting is that it would be cool to see Trump booed by a large crowd, and I would like to have seen an even larger crowd, and I wished that this crowd had waited until he arrived.

It wasn't a criticism of what was done tonight.

That would be epic.

I think his combover would collapse under the strain.

When have we ever seen that? Beautiful!!! But it takes away from the division that some thrive and count on.

What in blazes is going on in this primary, where grossly generalized and most often negative (attack) opinions about "supporters" substitute for discussion about issues?

I can understand if some "pundit" paid by the likes of Brock does it. But why would so many get sucked in to the extent of copying the tactic?

can be responded to with a gross generalization about "Bernie supporters",
and if you're even remotely aware, as you say by "reading posts", you know that kind of shit has gotten out of hand a long time ago.

So why do it, when you must know it can't be right?

That fear has set into your bones.

You might recall that Skinner himself had to be over a period of a couple of days talked out of believing a lie about Sanders.

This makes no sense. I'm seeing unification on both Sanders and Clinton sides on this issue (though Reddit Sanders "supporters" appear to be waffling a tiny bit).

No one is sure who the people behind the protest were but it was probably people from all groups just statistically speaking.

They've been openly planning online for a week. 50,000 students signed a petition for Trump not to come.

I'm seeing Clinton and Sanders supporters cheering this activism.

I've seen zero posts suggesting that Clinton supporters are "afraid that the people there are going to vote for Bernie." Zero. This is totally out of no where.