When you are the POTUS and you say "Drugitine is really" looking good for treating virus and Mr Man goes to the store and finds 'Drugamine" and takes it and dies POTUS is indirectly responsible. Doesn't matter the name is different he gave the idea to people who are probably panicking a bit. In that state rationale is gone
Trump's not a doctor he has no business talking about any treatments. All he should have said is "we have a few things that may work. Here's Dr Boy with more info"
But no trump wanted something to earn brownie points. I did the same shit as a kid when I was in trouble.. saying whatever to get people off my back.
Hell how many people called to ask about injecting disinfectintant after trump suggested it? That alone means what he says carries clout