Much as we hate to admit it, Trump appears to have democratic legitimacy (for some definition of democracy). Unless you expect Biden to suddenly admit “The whole election apparatus is bullshit and undemocratic”, he has to accept the results and act according to his Democrat principles:
Bend over and spread wide.
That’s the permanent arms race between attack and defense: Every time the defender comes up with a way to protect themselves, the attackers go find a new way to deal with that defense. Unless some superior force makes the attackers sit down and shut up, or the cost of attacking becomes greater than the return on investment.