Because I don't think injecting hydrogen peroxide, benzalkonium chloride, or isopropyl alcohol is going to have an effect that's any better.

Quibbling over whether or not they meant bleach or some other disinfectant isn't really the point. The point is the President was lending credence to the idea that injecting disinfectant into the human bloodstream might be a good thing to do. Which is absurd, regardless of whether or not he specifically meant bleach, and bleach is a perfectly reasonable stand in.

Bleach was, in fact, the first disinfectant in his list. Then Trump stands up and says we should investigate injecting those into the body.

I really don't think this it's applying a whole lot of spin to argue that Trump was saying we should inject the stuff the guy he was referring to had listed.