You can't use logic and reason or even appeal to morality when it comes to anti-vaxxers. They simply don't care.
I would like to bet though, that more than half of the worlds protestants today, have never even heard of him.
@Gwendolyn2018 yes I always thought that he was just as bad as the corrupt catholics he was said to fight. And the whole story of "Here I stand." etc. is a very iffy piece of myth making. Which is probably no more true than the Easter Bunny, helping Santa at christmas; if you ask me.
Much more respect for Huss as the founder of protestant thinking, but history counts only winners.