“Reb Chaim absolutely did NOT call those who violate the heath ministry’s rules rodfim”
he did.
In point #2
“A person who claims that he trusts in Hashem that he won’t become ill and therefore he makes light of the health ministry’s instructions (keeping a distance from others, not leaving the home unless it’s urgent, etc.) can he be defined as a “rodeif” because he’s liable to endanger others?”
I cant be bothered to retype the hebrew but the above is a fair translation of point #2
(you are right about the informing part which was regarding a person violating quarantine)