This is an absurd comment because just a couple years earlier, the Obama administration did a very effective job handling H1N1 without the amount of forewarning the Trump administration had. And that's not meant to be a partisan view of it: The Obama admin clearly took it seriously quite quickly, and by all indications (e.g., memos by Peter Navarro and Alex Azar in January), the key players in the Trump admin did too. It's that Trump himself, and maybe Kushner, had their own ideas, and actively thwarted an effective U.S. reponse.
The damage here isn't about left/right. It's about a few people in a position to bungle it, doing so with grade B cinema effectiveness.