They have to use force to get others to accept their false reality.
Very true!
The question is, "how did they come by this politics/philosphy/religion based on false reality."
I suggest it is nothing but good old fashion "collectivism."
Collectivism has been around since the beginning of human society. There have always been those who argued for collectivism as opposed to individualism (i.e., merit).
The problem is that both are needed. Strong individuals are needed for their merit (good hunting skills, intellect, and inventiveness). But even strong individualists needed the support of communities. Such communities consisted of those less productive but whose jobs were still quite valuable. And in those communities were the families of the rugged individualists, including the old and infirmed. These communities represented what we call collectivists.
The problem is of course politics. Any time politics is injected into ANY issue, that issue becomes confused, muddled, and, well, worthless.
As an aside, those who inject politics into issues can be broken into two groups: (1) true believers and (2) those who are using the political movement merely to gain power. Of course, some folks fall between those two groups.
The problem at the present time is that the collectivists have concluded that there is no room at the table for the strong, over-achieving individualists. So the collectivists have built a coalition of folks who are at the opposite end of the continuum from individualists. This coalition consists of anyone and everyone who identifies as mediocre, oppressed, weak, infirmed, lazy, envious, unambitious, uninventive, immature, insecure, and, in general, scared of trying their best because they doubt their potential.
The goal of this coalition is equality with those they identify as "rugged individualists."
Equality.
The problem is that what they want is unrealistic. It doesn't exist within the realm of reality. It is a fantasy.
Bottom line: For this political movement to succeed, reality must be rejected.
That means that any mention of reality must be verboten. It must be "cancelled."
Since Reality (capital R) is forbidden, it will be necessary for this movement to create its own alternative reality. Ergo, reality is fluid, flexible, relative, subjective. Reality is what you wish for it to be.
You see where this is heading.
The problem is that Reality isn't flexible. It is fixed in many very harsh and demanding ways. It is cruel.
Well, there you have it.;-)