We really need to expand on this. Simply "open" boarder is like painting the Great Wall, with a .5mm water color brush. It was HOW and to what extreme lengths that were used to FORCE it open. From stopping progress, to lawfare, to creating "NGO's" in foreign countries, that included front page newspaper articles on how to create, organize and manage a caravan to the US. A GD phone APP, to help them enter quicker with less traceability.
It's not simply an "open border". This was the potus willfully assisting and actually organizing an invading army, to ruin American standard of living, with one intent to build his favorite voter demographic. There's a name for this, starts with T but I can't put my finger on it exactly. There is also a defined punishment for that T word.