Why? Because it has been shown to work against viruses in general and anecdotally against this strain of coronavirus. The worst he can be accused of is getting people's hopes up when it might not work out. But, no, let's just blame him for these people's absolute stupidity.
In a riff on what Narg wrote above, if Trump said potassium supplements could cure it because it helps strengthen your immune system or something and they stupidly took some potassium cyanide because hey, potassium, you could hardly blame that on Trump.
Clorox kills this thing on contact. I suppose if Trump points that out as a good way to prevent the spread of COVID-19 in your home and some moron drinks bleach and dies, that's Trump's fault too.
On a broader point, shit like this post is why some here may have had the impression you are loving all these bad events so you can feed your TDS and spout anti-Trump idiocy. You may not wish for it, but you sure as hell are relishing it. I suppose you and your ilk think if you throw enough shit, real or imagined, against the fool that something will have to stick. How'd that impeachment work out fo ryou?
-Samantha Jones, SatC