yeah, according to Jack Kruse, frying carbs in seed oils is a very bad idea... most notably one of the chemicals that can form is called "acrylamide" and yes it is probably related to the chemical in acrylic paint

likely this is way worse when you increase the oxygen availability... a deep fryer is not exposing the fried material to constant refreshed high oxygen content air, so likely the fact might well be that air fryers are WAY more unhealthy than deep fry

my personal take on all this, is that if you are frying, you should go for slow, lower temperature, and deep fry, and let the oil stay at the warm temperature for a while before you start to add things to it as this increases the elimination of dissolved oxygen in the liquid

oxygen is not very soluble in oils, compared to water, so also, important to let things be dry before you deep fry them

i don't see why it would be unhealthy, if all done correctly, slow cooked, low temperature, even if it is carbs