There is no arguing with the left on this issue anymore. The agenda is clear -- dilute the culture and change the demographics to a point where there no longer is anything that holds people together as a nation. Demonize religion, national identity, family values, and western culture -- basically all the beliefs that held this nation together for over two centuries, and replace them with secularism, socialism, identity politics driven by diversity, and open border politics in order to dilute and marginalize the concept of what it means to be an "American".
They go after the institutions that keep us together as a nation and that support our common values. Diversity is used as a way to divide the country by making everyone a "special interest" that the government and the globalists can then use to pit one group against the other in order to maintain power and set themselves up as the ultimate arbiter of our political and economic futures.
Orwell was right on target -- if there is no national identity for the masses then the deep state through their government puppets will have ultimate control.