That is not an argument at all.
Once a member of the House, the Senate, or the President has been duly administered the Oath of Office, they are in that position and can only be removed in the manner that the Constitution says they can be removed. None of those manners include nullifying an election after the fact by a court because fraud was uncovered.
Even if tomorrow a group of people confessed to rigging the 2020 election for Biden, showed exactly how they did it, and had Biden on tape ordering it all to be done, the ONLY WAY TO REMOVE BIDEN from office is Impeachment by the House, and conviction by the Senate. The Supreme Court can't remove him, a Federal court can't remove him, and a state court can't remove him. Only a majority of the House can vote to Impeach him, and two-thirds of the Senate can vote to convict him. Upon conviction, the penalty as stipulated in the Constitution is removal from office, whereby the 25th Amendment is invoked to replace the President with the Vice President. NOT the wronged party from the election.
You might not like it, but it is the Constitution as written, and the Constitution is all that matters.