Can a kinked trans cooler line cause engine overheating?

It's not my job to school you in thermodynamics. If there is no restriction and the radiator cannot shed heat from the water, the water will exceed it's limit for keeping the engine cool since the radiator is not allowed to do its job. If you cannot understand that, I cannot help you.

Your argument comes from a place where you’re saying “and the radiator cannot shed heat.” That’s a big “and”

there isn’t any reason the radiator cannot shed the heat while the engine can generate the heat, while the thermostat is removed. Only if there is another factor causing the overheating in the first place.

Lol @ “school me on thermodynamics”
- this comes from a guy who sees a kink in a hardline that appears to be close to 50%, inside of a bend, and calls it “not folded enough”. Dude that tube is trash! That tube could barely drain a/c condensation