to what end?
To implement their respective dystopias.
To the end of power. If you end Western civilization, then your civilization takes its place and you are in power. But to get there, you have to break down every institution so that there is nothing left for people to hold onto.
Back when BLM had the NFL kneeling and a lot of fans (including me) not watching any longer, I said this is exactly they want because those not watching have lost faith in that part of the American sports institution and those still watching have accepted the new form which is kneeling. It may seem to be a reach to equate the NFL with Western civilization, but it's part of our social fabric and it was being changed into something new.
Meantime, a much larger assault on an institution was going on and continues, and that is the institution of gender. You have this sustained movement to make gender subject to what others say it is, not nature. Those others have the power when that's the case.
Now let's throw in the border and the notion that everyone is entitled to be in this country. There is no American citizen with rights and privileges, just people who can walk in and get things and vote and act like they own the place.
When you put these three things together, admittedly one of them not in the class of the other two, you see where the plan to devalue American institutions is designed to get people to say, "Nothing is the same. Nothing works anymore. We need a new thing." And it's not just those three things under assault, it's every institution. And again, all for power.