Reading just this comment, I'm inclined to think your friend is likely correct. You very clearly have a dangerous bias against THC and it's clear in your rhetoric, for example:

> while biologically correct gave these type of people a get out of jail free card.

Yikes.

I think part of the problem is ever since legalization weed became more mainstream (potentially dangerous) but weed-conservatism (i.e. exaggerating real risks of THC) also became much more common to encounter (also potentially dangerous). The reality is somewhere in between. I do not use THC, but as someone who used it previously and it tremendously helped me, my current mental model and set of anecdotes say you're likely wrong and exaggerating the real risk your friend is under.