The pro-death crowd, such as @MadeAliya, speak Dr. Fauci’s name like Chabadskers talk about Rav Shach ZT”L lehavdil.
Both are incredibly important figures that have done a ton of work in helping the tzibbur and both have been the public faces of a series of opinions held by the vast majority of experts.
Chabadskers choose to pick on Rav Shach ZT”L and deride his memory because it’s easier to attack a single man’s opinions than admit that he was far from alone in what he was saying.
So too pro-deathers have Dr. Fauci as their target. It’s hard to admit that virtually every health professional and organization in the world has been saying the same things as Fauci (or at least when the argue, it’s only on small issues like double masking) and that you know better. It’s much easier to just pick one guy and call him a nut.