Joe Biden did nothing remotely comparable to what Trump is doing now.
And unlike Trump, Biden faced constant criticism from within his party. He would have faced outrage if he tried to, for example, cancel all federal grants containing the word "conservative" in them.
Meanwhile we're heading towards a future where Trump can deport anyone he doesn't like to an El Salvadorian prison without so much as a trial, regardless of whether they broke any laws. Why doesn't this terrify people on the right?