James Madison argued against "an interested and overbearing majority" and the "mischiefs of faction" in an electoral system. He defined a faction as "a number of citizens whether amounting to a majority or minority of the whole, who are united and actuated by some common impulse of passion, or of interest, adverse to the rights of other citizens, or to the permanent and aggregate interests of the community."
Whether you respect the Electoral College or don't, Trump should not be the President. But given that he will be, we have an obligation to stand against him. And to shame those who refuse to stand against him and his administration. Sadly this appears to include YC and its leaders.