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The supreme court did not evaluate the claim. They simply hid behind a possible technically, and that too was without a reasonable explaination. This is all you need to fully justify the claims of 75 million votes who know their votes were laughed at.
Sure you can go further and see the thousands of irregularities which varies from not following processes and law, to counting late votes, to counting un-traceable votes, to counting mas ballot dumps, to adjudicating in machines without a proper audit trail, to intentionally stopping the count to send observers home, and then continuing. Unregistered voters, out of state voters, bribed voters. And much much more.
Remember this one undisputable fact, it's not some crazy conspiracy citizens, 20 state attorney generals saw severe enough issues to sue.
If you want to find an insurrection, that's where you'll find it.