I don't think the 'cult deprogramming' argument works for public figures! If you're a regular person, listening empathically to your anti-vaxx aunt is fine. If you're a public official speaking to millions, though, the message has to be "MAHA is killing kids," not "MAHA has some good points."
I think this thread is very relevant to the "leaders" in MAHA, such as there are, but I have to imagine there are those on the periphery. Cult deprogramming relies on not shaming, and keeping dialogue open. Isn't that what AOC is doing?