Same. And imagine that all his followers believed the same and told everyone that all other followers of all other gedolim adopt this position as well.
Oh, and the Gadol isn't actually an antivaxer.
This is such a slippery slope for how you make opinions on people, it's scary to me.
You have a DDF Members that says talking in shul, is worse than most anything else, and if you talk, you are basically off the derech, sorta what you are saying is the feeling I get. Is he wrong? Idk, it's hard for me to judge others personal beliefs and struggles.
If someone is fat, IMO they are much worse than an anti-vaxer. If a gadol is fat are they breaking halacha? Probably? Do they have less followers, I don't think so.
If someone smokes, obviously they are breaking halacha and are MUCH worse than all the above mentioned people.
If someone doesn't brush their teeth, they are likely also breaking halacha, and you are welcome to have poor opinions about all of these people. And say they destroy their whole persona.
I disagree with you though.