If we can't use OSHA to force vaccinations, perhaps interstate travel is the way to go.

Those that want the vaccine will get it and those that do not want it simply won't do it.

"Lead a horse to water" and all the other aphorisms you can think of that apply here.

Take care of yourself and your loved ones and let the antivax crowd get sick and die off.

... and science.

Someone's convinced them they're right about the vaccine and they have a vested interest in not taking it, let them have at it

Yes, the vaxers less so and with less effects. But the die rate is less than 1% so they will not die off in any significant numbers.

At this point the vaccines aren't doing much if anything to stop transmission, so I don't think there's much of a basis for mandating the vaccines to control the spread. I'm sympathetic to the argument that the unvaccinated are more likely to burden the healthcare system, but I think mandates on that basis are a dangerous precedent that could enable the government to try to control all sorts of things that burden the healthcare system. In any event, reducing the burden on hospitals is well outside the purview of OSHA (or the DMV or DOT for that matter).

they'll come up with something like "no interstate travel if your pregnant"
we're headed to a very dark place

This would sink the economy. Ruin tourism. Worsen supply chain problems. People going to work over the borders. It's interrupting free travel. And lots of other stuff.

Mist of the antivax are republicans, but not all. There's many democrats and independents going without the vax. The black population has one of the lowest vax rates.

It would be very bad to do this.

Domestic flying should require full vaccination.

If we don't do the right thing we win.

That's what republicans will be saying over and over during the next election if this comes true. Also, drivers licenses and car registrations are state-level only, the feds have no say.

They don't vote correctly anyway.

You are correct about state level, but there are easy work arounds that have been proven.

Withholding Highway funds unless the states comply is an oldie but goodie.

This was used for the Moto-voter bill as well as raising the drinking age to 21.

They are a loser politically and we're in an election year.

If you don’t use that election to take care of people?

Requiring vaccination to board Planes, Trains, and Busses that cross state lines would be viable as long as there is some legislative language that allows the executive to enforce it. It would be difficult for a states to successfully argue against it.

Driver licenses and car registrations are handled by individual states; powers not enumerated by the Constitution to the federal government and reserved by the states and I suspect states like Florida and Texas would make a strong argument that their powers are being unconstitutionally usurped.

Until the state complies.

This has worked plenty of times in the past.