And are you really surprised by that shift? Many in this country are suffering, and bought in to Obama's "HOPE" and "CHANGE" and got next to nothing for it. In this election Harris tried to sell herself as simply "Biden but younger" instead of presenting transformative ideas to help people - and in a choice between continued suffering or the promise of something better of course many will choose the potential for something better - even if the person presenting it is a deplorable con man.
And yes, I will absolutely call out the so-called Left in this country for doing too little, for being hypocrites, for fighting for the status quo rather than for their constituents. Sure, Republicans are worse, but Democrats keep handing them free elections by being utterly tepid.
And, for the record, "the people who keep voting for the systems causing common folks to suffer" includes anyone voting for Democrats too.