Well, if various polls were reliable when they reported that 38% of voters believed pretty much anything Trump said, this isn’t all that surprising.
On the other hand, polling questions are blunt instruments. I pretty much fit the “old person with nothing better to do” description, and I either refuse to participate or find myself terminating a polling session when my honest answer to most of the questions is “It depends,” and explaining why would require several hundred words of explanation and background. It usually doesn’t take long to work out what the poller’s client is fishing for, at which point I apologize to the questioner (who is following a strict script) and say goodbye.