One one simple explanation adequately explains all the results, yes that is best. If the data showed something else and some pieces didn’t fit then yes, other solutions should be sought. Very frequently the most boring answer is the right one, as much as you want to make it be some complicated political thing.

(And for what it’s worth I’m politically on “your side”. The right wing media is poisoning the well regarding trans people and, hey, maybe without that this poll shows 16% estimated instesd of 20% or something. The point is you don’t need that explanation to explain it because every other data point is showing the same misunderstandin)