Please present the polls that show that a majority of voters is swing states want Biden to pack the Supreme Court.
Let's be clear. You just don't believe in the Supreme Court (and the lower courts) as a balance against the other branches AS IT HAS BEEN in many dozens of cases in the past 5 years.
If the Democrats cannot write a law that passes the muster of the courts, then so be it. SURELY, Democrats should be able to craft such a law. Do you expect the recovery bill to be trashed? the infrastructure bill? No.
The issue is very simply. You disagree with the conservatism of the current court, and refuse to believe that the President and the Congress can pass laws that will past muster with your own views. This is NOT a reason to pack the Court (which has ZERO chances of becoming law and, if passed, would be reversed by the next packing by a Republican president).
The answer is have Congress pass laws. The TRUE answer is to do all we can to elect Democratic senators and House members. Then, Puerto Rico and DC will be states, and more of the Democratic agenda will become law.