When I was there in 2017, there were specific procedures on how to gain access that any reasonably intelligent and informed person could use. I don’t know what it looked like in 2021.
Yes...I got the point you were making. And I would agree.
That GIF doesn’t display well, but...it does show a gate being opened by Capitol Police and the protesting public being let in.
I admit to being a bit non-plussed by the charges against many of these people in light of the many videos showing this, and the nonchalant relaxed behavior of many of the Capitol Police in still images chatting with protestors.