That is certainly true whether or not there is a pandemic. I don't think that inevitability really has anything to do with pandemics; they'd blame it on the phase of the moon if nothing else came to mind.
"is a Presidential Directive establishing a comprehensive policy on the federal government structures and operations in the event of a "catastrophic emergency". Such an emergency is defined as "any incident, regardless of location, that results in extraordinary levels of mass casualties, damage, or disruption severely affecting the U.S. population, infrastructure, environment, economy, or government functions."
https://en.wikipedia.org/wiki/National_Security_and_Homeland...
It organizes the three branches under the President.
The bigger problem is really with the Democratic primary, which is happening now. A critical element of elections is that they have to not just be fair, but be seen to be fair. How is the primary going to be seen to be fair if some significant number of the delegates are elected from elections that occurred while the electing states are essentially locked down? No matter what you do, it will be seen as unfair somehow.
I have to assume you don't mean "The Democratic National Committee infected people with COVID-19." But I don't think I can puzzle out what you mean.
e.g. we happily accept some risk of being killed in an airplane or road traffic accident even though those things could almost certainly be made less risky than they are now. We're ok with some non-zero risk, provided it's reasonably constant and known.
I'm not saying any of that will happen, but you talk as if our social constructs and institutions are barriers that limit where we can go, when in actuality they're breadcrumbs that we choose to follow.
Societies have flipped out before.
The 20th Amendment: Section 1: The terms of the President and Vice President shall end at noon on the 20th day of January...
Section 3: If, at the time fixed for the beginning of the term of the President, the President elect shall have died, the Vice President elect shall become President. If a President shall not have been chosen before the time fixed for the beginning of his term, or if the President elect shall have failed to qualify, then the Vice President elect shall act as President until a President shall have qualified; and the Congress may by law provide for the case wherein neither a President elect nor a Vice President elect shall have qualified, declaring who shall then act as President, or the manner in which one who is to act shall be selected, and such person shall act accordingly until a President or Vice President shall have qualified.
If there's no election, he stops being President at noon on the 20th of January.
Reading over your quote, it actually seems that a simple law could keep the president in power as long as no President elect or Vice President elect exists. As it says, "the Congress may by law provide for the case", "declaring who shall then act". Nothing says it can't be the old president.
On 6 Jan 2021, the votes of the electoral college will be counted in a joint session of Congress. Disputes about the votes will be addressed, if they exist (and if no general election is held, I'd imagine there would be plenty!).
Once that ends, if nobody has an absolute majority of votes, the Nancy Pelosi-led House of Representatives immediately goes into session and votes for President (the Senate votes for Vice President).
President Trump needs to win a fair election to continue being President.
Also, does January 6th have to exist? By law, we could shorten January to just 5 days. We could compensate by lengthening March. There would never again be a January 6th.
Who knows what would happen after that, but it likely wouldn't be anything anybody wants.