Honestly, IMO Britain needs to just let go of this 'special relationship' nonsense with the US that we seem to think we have. It only applies when the US wants us to join in one of their wars, or hassle Europe about something which we can't even do properly anymore since we left the EU. Otherwise the US really doesn't give two shits about what we're doing.

We're a European country, not an American state. We should act as such and move closer to being part of Europe, instead of trying to suck up to an isolationist powder-keg on the other side of the world. (Which I'm assuming will be the case once the MAGAs are in charge.)

Brexit makes no sense in any world.

Except the one invented in Farage etcs brain farts.

It makes the assumption that we could do that.

There's no certainty that another referendum would be in favour of rejoining. Most people have bigger problems than the green line not going up quite as fast or Tarquin not being able to do erasmus. If anything so little changing after brexit for the vast majority of people has just cemented the idea that we don't need the EU. The prospect of getting drafted into WWIII is hardly going to help.

Taking us back in without another referendum is theoretically a possibility. It could provoke a backlash at the next election though, so even if they pushed it through before then we could just end up with Farage as our next PM and leaving again. The EU would hopefully realise this and not let it happen, since it would be a massive pain for everyone.

Even if you had another referendum, and it was in favour of rejoining, if it was just a slim margin again, are we going to want to rejoin, and will the EU want us rejoining, given the very likely prospect of calls for a third referendum?

Without the EU giving us some kind of deal more favourable than we had before (which is unlikely), or some kind of structural reform of the EU, it's doubtful.