When they had a filibuster-proof majority for…checks notes…4 months. And they spent those 4 months…checks notes…trying to completely overhaul the entire US healthcare system. That is, instead of doing the half-dozen things you mentioned which would have taken literal years of work to push through.
Fuck off with that revisionist, fantasy-land bullshit. You want Democrats to be full-on fucking dictators who can do whatever they “choose” to do, whenever they “choose” to do it, and they’re not, so when they don’t “choose” to do the shit you personally want, your lizard brain has convinced you they didn’t do it because they “chose” not to. No amount of infantile teeth gnashing changes the way the actual world works, where checks and balances exist. That is, despite whatever the fuck is happening in your imagination.
Wherever the hell you come from, stay the fuck in your lane.