The white libs have all been economically secure their entire lives - through Clinton and W and Obama. Biden really will save them - they can be mad at him not being good enough if they work hard enough, but mostly they don't have to performatively pretend that Trump has actually made their life worse in any meaningful way except being mad on Twitter/Facebook/Reddit and maybe attending one protest in four years.

Most of the liberals in my real life are cool and reachable and generally do not have lockstep Vote Blue No Matter Who opinions - they're construction workers or teachers or nurses or etc.. The MBAs and the ad executives, not so much - and more closely resemble online libs.