Lets see your proof.  

Serious Neurological Adverse Events after Ivermectin—Do They Occur beyond the Indication of Onchocerciasis? (nih.gov)

here's the problem - they don't know whether it was the ivermectin, the Onchocerciasis volvulus, or the combination of two, that were causing issues.

The major problem is there don't appear to be ANY studies using ivermectin long-term. In other words, it's used to treat river blindness, scabies, and a few other infections. My point is, if you put this substance in your body and the chemical is in you constantly, 24x7, for an extended period of time, the results are compeltely unknown. Unlike the vaccine that is completely out of your body in 2 weeks...And there have been billions of doses given. 

Here are side effects for Ivermectin: