Some historical context, as far as I recall and understand it:

-The Red Pill was the realization what female nature truly is and how it is weaponized by TheSystem to keep men obedient and subservient.

The concept that The Plantation exists and that women are unaware but willing agents of this system is THE KEY realization of TRP.

-PUAs joined in and realized that the system can be Gamed, and subverted TRP into "be the bestest prettiest Clown House Boy and the Massas will choose you for sex. Game, Lyyyiiifftt, Hodl Framez, ALPAH!!!", and other stupid inanities.

-MGTOW rose against the PUA movement, as a statement of personal ownership and refusal to participate.

MGTOW's most valuable realization is that THERE ARE NO "Alpahs" in ThePlantation, ONLY SLAVES.

-Passport Bros came along and posited that one CAN exit TheSystem and live a reasonably fulfilled life building a family with a feminine attractive woman in a country where men are not hated and disadvantaged.

Only time will tell if this is just a delusion and we are stepping out and into another, more global Matrix.

What we all agree upon, around the Manosphere, is that TheSystem is rotten to the core and is irretrievably damaged in its current form.