Not only do open/loose borders loons not understand or support our borders, they also have issues with public vs. private property. Earlier today a small group of said loons delivered petitions to Sen. Dianne Feinstein's San Francisco office. They also gathered on the steps of the building, and the building is private property. The security guard asked them to get off the steps, and it apparently took several minutes before they relented:

[After having been asked to leave the steps...] As a woman who identified herself as Mary Doyle of the Diocese of Oakland began to read a prepared statement, Cooper [the security guard] stepped into the middle of the group and told her to stop.

Another man in the crowd asked Cooper if he was afraid of the group.

"No, I am not afraid of you," Cooper said. "I asked you very politely to break this up and you have not done it. Can you please comply with that?"

A demonstrator told Cooper, "No." Another person said it was the group's First Amendment right to be there.

"To invade private property is your First Amendment right?" Cooper said.

He then apparently showed them the "border line". After having determined that they were on private property, most people would relent and move to public property. It's quite revealing that they did not:

At one point, Doyle began reading her statement again, and Cooper started making loud noises over her speech in an effort to get the group's attention. He asked the group to move again... [...they got into an argument...]

...In the end, the organizers moved 10 feet to a nearby sidewalk and continued their demonstration.

They didn't cross the sidewalk, the sidewalk crossed them.