The conservative argument boiled down to trump didn't do it.
If he did do it then the president isn't accountable to the Constitution.
And if the President is accountable then a single state can't disqualify him. (Even though they routinely do so for other job requirements.)
If states can disqualify him then they can't do it until he wins the election because Congress could maybe, in an alternate universe, vote by 3/4 to remove his bar to office.
So according to conservatives we have to let a traitor win the election and then have the moral fortitude to DQ him and re-run the election. Because that's not nightmare fuel that will instantly cause a civil war at all.
They also ran a parallel argument saying nobody can do anything until Congress passes a law about an enforcement regime for the amendment. A requirement not in place for any other Constitutional bar to the office and with no text in the 14th requiring it.
Why the fuck are we bending over backwards for this humanoid?