How can EU be the one expected to be inviting when they didn't kick the UK out in the first place? The UK is the one that left on its own. The EU doesn't have to do anything, I think they are quite open to the UK or anyone else in the continent joining. I just find it absurd a British person is complaining without the UK first doing the homework and showing joining EU is something tenable from their side via an internal vote about joining.

If you want a disclaimer, I am neither european nor british if that matters. From outside the situation seems very clear to me.

I could go into exhaustive details, but the EU made absolutely no case to the British people why they should be part of the EU, and that case is still unmade. Brexit was an EU political issue happening inside the EU yet it and the British people were treated with ignorance and condescension, like it was a wholly British minor political issue and the very thought of leaving was laughable (openly laughable because Nigel Farage got laughed at in the EU parliament when he put it to them that he was going to make Britain leave, which he succeeded in doing). That case for the benefits of joining has still never been made, rather assumed as self-evident. There has been no publicity at all towards the British people that they could rejoin and it would be beneficial, which is the step the EU would reasonably take yet refuses to do. Hence the British people similarly have no interest in begging to be part of this organisation, the mechanics and political organisation of which is very poorly understood.