You simply do not understand what evidence is. Say a new virus becomes a problem. 80% of people who get it get better without any long term symptoms. 20% die. Of the 80% who get better, 30% get better very quickly.
Person A gets the virus, takes a medication and gets better. Does this mean the medication made him better? Maybe he was just in the 80%. Maybe he was going to be in the 20% that die, but the medication cured him. There is no way to know based on that one person. In order to figure out if the medication helped him, we need to test it on a large number of people to see if survival is significantly above 80% in that group. Not only that, we need to design the study in such a way that controls for other variables that could contribute to surviving or dying.
Those studies were done with ivermectin, and the overwhelming evidence is that it isn't doing much, if anything.
Person A gets the virus, takes a medication and gets better. Does this mean the medication made him better? Maybe he was just in the 80%. Maybe he was going to be in the 20% that die, but the medication cured him. There is no way to know based on that one person. In order to figure out if the medication helped him, we need to test it on a large number of people to see if survival is significantly above 80% in that group. Not only that, we need to design the study in such a way that controls for other variables that could contribute to surviving or dying.
Those studies were done with ivermectin, and the overwhelming evidence is that it isn't doing much, if anything.