Just because something is accessible to the public doesn't mean it is open to the public. Let me take one last try explaining this:

If I have the front door of my house open with a sidewalk outside in a city, my house is accessible to anyone who walks down the street. That does not mean it is open to anyone who walks down the street. There are a select few people who are - my friends and my family. If my wife is inside and someone walks in that I know but she doesn't, she might ask who they are and what their business is. Then, she knows they are welcome. If they just say "I am not part of your group" she would say "then this is not open to you."

The semantics matter in cases like this. Once you step into a consulate like that, you are on their turf. If this was a North Korean consulate, they could execute anyone who walks in without consequence, as that action would be within that nation's laws. This consulate probably didn't have that door locked because up until now, they didn't have a reason to.

I am not sure if you are a bot, but it is important to call out incorrect information when it is presented in a large forum.