The future is always uncertain, control is the greatest illusion that most people hang onto.
The Democrats will probably get their stimulus, and some tax policy through. After that, good luck. Manchin, Collins, Murkowski, and Romney, will largely determine what gets passed in the Senate.
Taxing the rich always seems wise, but in our modern age, where people and jobs are able to move at the touch of a key stroke, it is not as easy as it once was. To much, and the Blue States lose a lot of revenue, from people moving away. Unfortunately, the biggest bit of tax money is in the 100,000 to 1,000,000 tax brackets, not above. Touch that to hard, and who ever votes for it, gets voted out.
Pandemics happen on a regular basis, and have through out history. Some have wiped out 25% or more of Europe, and Asia Minor, plus North Africa, and the Middle East with in less than a handful of years.
As for making the Affordable Care Act immune to further challenge. No one Congress can bind the hands of a future Congress, short of a Constitutional Amendment.
As for Climate Change, the EU, the US, and a few other highly developed countries, could go to net zero, or even negative emissions, and China and India would still doom the planet. We cannot do it by ourselves, no matter what we do. That is a bitter pill to swallow, especially for those who believe America can do anything and everything.
Finally, as to the Democrats, if they seek only to seek revenge on the Republicans and their politics, they will fail miserably, and lose both the House and Senate in 2022. To say we can't blow it, is to defy human history, which all to often is a case study in how we have blown it.