How is HCQ's effects on malaria even remotely relevant? Malaria is caused by a eukaryote parasite and SARS-CoV-2 is an RNA virus. They're radically different and unless you have some sources demonstrating some sort of biochemical pathway that is common to the two that HCQ affects, I don't see why you would even mention it.

I mean aspirin relives headaches, is part of the gold standard treatment for Kawasaki disease and prevents heart attacks and probably has fewer studies showing that it's not effective in the treatment of COVID-19, but that's no reason to speculate as to whether it'll prove to be another miracle cure.