He "set the stage" as it were, and people did what they did. It's really not that different from what the women did: She got people upset about Islam.
"So we are going to--we are going to walk down Pennsylvania Avenue, I love Pennsylvania Avenue, and we are going to the Capitol, and we are going to try and give--the Democrats are hopeless, they are never voting for anything, not even one vote but we are going to try--give our Republicans, the weak ones because the strong ones don't need any of our help, we're try--going to try and give them the kind of pride and boldness that they need to take back our country. So let's walk down Pennsylvania Avenue."
There aren't 25K troops in DC as I write this because Trump did not incite a coup/insurrection, they are they because he did. The reaction itself is the proof.
You may not think Trump's rally should have had that effect, but at this point, it's moot: it did.
I'm very weary of a country and a government in which we can be charged with "incitement" or even treason for suggesting to peacefully exercise our 1st amendment rights to dissent against it.
Making factual statements about Islam is not incitement to violence. The woman did not want or ask those who dislike her remarks to get violent or lose self-control.