I would love to see some peer-reviewed sources on those claims, specifically that canola oil is actively bad for you, that "temperate oils" are bad for you in general, and the rancidification claim (I keep mine in a cupboard and I have literally never had it go rancid).

I cook mostly with (actual genuine) extra-virgin olive oil or peanut oil, since I prefer the smell and taste over the more commonly used canola/sunflower oil, and yes you can fry in olive oil just fine. But I still want to see some credible research that supports your claims.

Edit: here's a good article with plenty of citations that strongly disagrees with your claims: https://www.hsph.harvard.edu/nutritionsource/2015/04/13/ask-...