Listen, I know that capturing a wight is Jon Snow's only hope of convincing Cersei that all the Houses need to come together to defeat the White Walkers. I know this. BUT, couldn't he have come up with a better plan to do it? Some planning might have gone down behind the scenes, but from an audience perspective, we just see Jon and the gang charge beyond the Wall armed with a few dragonglass weapons, apparently hoping they'll run into a single wight that they can bound, gag, and drag back to Westeros.
After Hardhome, Jon has seen what the White Walkers can do. You'd think that he would set a meticulous trap for a wight rather than merely crossing his fingers that the Night King's full army doesn't show up. Even if he assumed his plan of wandering around the icy wilderness hoping to stumble into a lonely wight would work, he should have, at the very least, asked Daenerys if she could accompany them to Eastwatch with her dragons in case things went south. She might have said no (she probably would have said no, let's be real), but it's as if Jon didn't even consider that as an option until it was far too late.
