Curating your news is part of healthy media consumption. You literally connect consume all news. There is too much, and once you find an unreliable source, its generally best avoided.
It’s really no different than the cringy characterization of other humans as “NPCs” often spouted by children. That thinking indicates a sort of complex that is very off-putting.
Given that, this person would likely benefit from exposure to alternative viewpoints instead of further insulating themselves.