The "angst" and "grievances" you are referring to, was really, racism, anti-immigrant racism, animosity towards cultural change, and fear of white dominance ending. None of these are actual legitimate grievances. These sentiments did not come out of the Obama era either, or because of it, they always existed. The 2008 recession, amplified it with the creation of the Tea Party, widespread hatred for corporations and media, coinciding with a black man coming to power.
Back then it was the white replacement theory, white flight, "terrorism", anti-LGBTQ attitudes because of religion, gun control etc., Today it is against "woke".
Meanwhile, "woke" is nothing more than marginalized folks, such as POCs, LGBTQ+, Women - people no longer willing to put up and shut up, voicing their opinions, engaging in activism and demanding change. And they have been hugely successful.
So between the two groups - the progressives and MAGA, only MAGA qualifies as a populist irrational cult, based purely on hatred. And sure enough, the ones who act as MAGA custodians and leaders, are all frauds, con men, assholes, creeps, low IQ morons with a twitter account, etc.,
