If you're so certain that ivermectin doesn't do anything for COVID-19 then you ought to let the NIH know. They're currently running a huge clinical trial on it.

https://www.nih.gov/research-training/medical-research-initi...

You might also want to let these researchers know that you disagree with their results

https://www.mdpi.com/1999-4915/13/6/989