I do not wish to be snarky, but that would not be an entirely useful outcome would it? Do your future travel plans include walking to Europe or the African continent - assuming your port of arrival would let you in?Hope when they do try to mandate it .it blows up in their faces air lines and other countries tourism.
Hope it pits the airlines out of business
They are businesses and they are looking for ways to fly again. Not only do I not expect it to blow up in their faces, but I am convinced proof of vaccination offers the shortest path to getting international travel back to normal. I will gladly help that effort out by taking that shot - along with all the others I have taken in my lifetime; get my second in three days. But you should do exactly what you want to do.