Yeah, unless you're particularly well equipped for that type of interaction, you're unlikely to get any kind of satisfying outcome by asking them a question
Those sorts of people have a lot of experience gish galloping, rationalizing their own contradictions, and feeling smug about whatever bullshit response they give.
I don't think their facade is impossible to engage with or break through, but it will always take more than one clever question to get there.
I too would love to vote for AOC, which is precisely why her endorsement matters to me.
I trust her judgment enough to want to elect her, so I also trust her judgment that the best path forward right now is to support Harris.