The Kelvin Pill - that hasn't been standardized in pop culture yet. People use that term very loosely now, outside of the dating/masculinity advice area which doesn't apply to Kelvin.
Rollo Tomassi popularized the term Red Pill in 2013. He wrote a book. Take the Red Pill, unplug from the Matix, get wise to the ways of women. Get smart on feminism, family court, false charges, fitness, money, etc. Red Pill in the Rollo Tomassi terms are very specific, and any of his friends use it in that sense. Andrew Tate, Richard Cooper, Fresh and Fit Podcast, Donovan Sharp, Kevin Samuels, etc etc
Conservatives have adopted that term for when a Blue goes Red (republican) but Rollo was first. So if you hear Dennis Prager use the term he means red pill in the adopted political sense. This might be more info that you wanted
There's billions of dollars spent feminizing men and propagandizing against Whites and propaganda FOR Blacks. Kelvin started and graduated college in the 90s right? He got hit with waves of brainwashing from 5 different ways to Sunday. The South American roommate he had in college (he mentioned it in one of his videos) is obviously not a representative sample of society as a whole. But the brainwashing (woke, sjw, politically correct) he got in college changed him. Sigmund Freud invented psychoanalysis (a form of brainwashing) in the 1890s. They have worked on making it more effective ever since. If Kelvin had a larger family instead of a single mommy running her mouth making false charges, like Amber Heard, he might have had a chance. Or a strong moral compass, like a strong Parrish priest or like a strong Methodist church (I'm Methodist) that teaches honor thy father and thy mother, maybe he'd have a chance.
As far as I know he flipped out over the Jan 6 trespassers, but was radio silent over the BLM rioters, burning looting and murdering. But maybe drag queen story hour and Cabaret men sex shows with school children, will get him online asking questions about why that's going on.
So there's not really a term for the brainwashing pill, but I think that's what happened to him. Brainwashing. His getting hit from 10 different directions, the moral compass he walked into college with, was sure as hell wasn't the one he walked out with