THC comes in a plant in the THCa form. CBD comes in CBDa form.
Both are not bioactive by default in their natural form.
Both are not bioactive by default in their natural form.
There are a large number of cannabinoids at play, some clearly (as in observably and demonstrably) are bioactive in their natural, unheated form.
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None of which is said to endorse the other theory. Just to point out that claiming heat is required is incorrect.
Any human-like animal with our receptors eating a large amount would get high as fuck, cooked or not. A ruminant eating pounds of the stuff raw, would not be that different from a human consuming an ounce of baked pot.