I've heard this theory before, it's not my own but lately I've thought more about it with events under Biden. I think they realize they are exposed and are basically going to loot the country and burn it to the ground in any way they can before they are stopped. The average American seems not aware at all of this so the destruction could drag on for some time but I think they may finally be doing an end game of sorts where even they know they may be eventually kicked out of America because of it but they figure they will have so weakened America by then that they will never be threatened in their new host nation.