The downvotes are always strange to me. I see my share of posts get downvoted for no clear reason. Fox does make some people instinctively downvote, so maybe that's part of the reason.
I wish people would at least engage the comments to voice their opinions. And, if the UAP topic isn't something certain people want to see in their feeds then they should block the community instead of downvoting the posts. Lemmy is still small and when people downvote posts without discussing why then they're just going to stifle Lemmy's growth.
I would like to see the topic brought up with candidates, though the questions would need to be presented in a way to limit ridicule. I think the best route would be framing the questions around security and lack of transparency in the government. The historical and recent UAP sightings near nuclear facilities and military locations would be a good focus to show that there is a long standing security concern that isn't getting properly addressed.