If cooperation between the two parties doesn't happen, we're truly fucked. Climate change, COVID... if it's not clear by now that the status quo won't sustain itself, I don't know that there's any hope for this country.
If the Dems were smart, they'd take a big Republican issue like repealing ACA, and offer to work with Republicans on an ACA revamp, agreeing beforehand that both parties could take credit for. Biden could even get Obama's blessing to call it a "repeal and replace" as an olive branch.
Republicans would then be in a position to either publicly reject an offer to make good on their own platform, or they'd be forced to come back to the table and start actually hammering out policy again.
A much easier win would be legislation that would require cigarette pack style warning labels on news entertainment like Maddow or Hannity: "this is news entertainment, and as such, the opinions presented are not subject to the same journalistic standards as our news broadcasting." Revoke WH access to Fox or MSNBC if they don't comply.
I am a lefty idealist, but we need pragmatism to start happening yesterday. Conservatives used to be those pragmatists, but they're now idealists, too, and the two ideals have turned everything into a shitty zero sum game. If we can make more incremental legislation actually HAPPEN, we can get the government moving forward at a pace and direction that a MAJORITY is comfortable with. It's either that or we remain stalled out, and continue drifting into authoritarianism.