You expected Antifa to be dressed like Antifa? The concept of impersonation seems to be a difficult one for many.
The real Trumpers were pulling back the guys trying to break a window - and shouting "Antifa!" at them. And several of them overheard a group of them walking toward the Capitol discussing what they were going to get blamed on Trump. I personally saw a couple of people there that were openly from the anti-Trump crowd.
For something like this, you need agent provocateurs - but they made extra people almost inevitable by lobbing cannisters not out front, but straight into the crowd. That forced a lot of people into the building.
And you again ignored the fact that 99.9+% of us there heard absolutely NOTHING that said go storm the Capitol. Because he didn't say anything like that. Most of us never even knew there was anything even going on inside.
But don't let the facts get in the way of a good story, right?
Never ask rabid Trump haters to be objective, balanced, or honest about these things.