What KS was doing was completely different than all those others you mentioned. FF, Pearl, Tate, etc. all just "leaned" into the manosphere space because it was hot at the time and was a quick way to blow up your channel. None of them actually believed in stopping the gender war foolishness and getting married which is what KS was talking about.
All of those you mentioned are "crash out kings" and they all eventually crashed out one by one and got demonetized/banned. Pearl was doing "white girl reacts to rap videos" content before her redpill phase. The FF idiots were doing just about anything under the sun and "fake it till you make it" content, they blew up because of KS, and they were all about manufacturing reactions from women, they were never serious.
KS knew what he was doing.