Well, to get rid of Citizens United, you need a path to that. How are you going to get enough judges into the supreme court that will overturn that decision and which conditions will have to exist to even make it legally possible to make such a decision?
For me, the realistic path forward to change is major events e.g Biden assassinates/imprisons the entire supreme court as his last act in office (the Supreme Court basically gave him the right to do so), Kamala wins and isn't yet another democratic pussy that does more for the rich (she pardons all student debt, she fights to amend the constitution to get rid of First Past The Post, expands social security, make education free, plays dirty against Republicans, and so on), Trump wins and it galvanises the country to get politically involved, China does something dumb like invade Taiwan, the EU calls out the US for undemocratic behavior and starts a trade war or something similar, etc.
Why? Because most people don't give a shit about politics beyond it being some kind of entertainment like American football where they get to pick sides depending on how they feel. For change to happen, USAmericans would have to educate themselves politically, show up at all elections (not just presidential ones), and decide to vote for the good of people they don't even know instead of voting for their own, egoistic goals. And that doesn't change quickly (or seemingly quickly) unless major events happen.