the sole reason that vaccination was even considered a viable solution to "the pandemic". If it weren't for Operation Warp Speed, no one would be taking the idea of vaccination against a highly mutagenic virus seriously

I don't think that's true at all. Warp Speed just got the manufacturing and distribution ball rolling. The treatments were already in development and presented to him as an option. (There's even some indication they were in development before the pandemic, but that's another rabbit hole.)

Trump can be blamed for allowing the emergency authorization for barely-tested gene therapies to be unleashed on the public when they were. But if he hadn't then they simply would have waited until after the election to roll them out and give the Democrats credit.