I'm surprised you didn't just call the author a racist or some other slander. If you wish to debunk his theory, by all means do so. Use research and make your points. Attacking his character and accusing him of a conspiracy theory is not very convincing to those of us who use critical thinking.
The top OP has zero sources and then says "fuck all those citation [sic]."
OP above you is merely revealing this non-reliability.
Top OP might be correct but zero sources makes me immediately question every single argument. Dude can't be bothered to name ONE SOURCE! One! A paper. A Person. An organization....anything. Nope! Nada. Zilch.
It seems that your problem is with the content of the article, not the lack of sources. Would you be objecting to the article if it said the drug was ineffective? Doubtful.
Yes, we would be doubting everything the article said when it was an argument cast by a lunatic spouting numerous other conspiracy theories like Covid-19 is a bioengineered virus that escaped a bioresearch lab.
I understand and mostly agree with your concern about the censorship of messages these outlets disagree with. I must point out that while unethical, it is not a freedom of speech issue. The constitutional right to freedom of speech is in relationship to the government only. If Medium and other platforms were a government run then you would be correct. Thankfully, they are not. Pressure put on the censoring by platforms by you and I is the only way to change their mode of operation.