This is an excellent - and depressing - analysis of Brexit. An important factor in the video is only fleetingly mentioned: the UK's nasty national press mostly in support of Brexit.

The length of the FT report is 30 minutes, but if that's too long, here's a 3 min video summary of the dishonesty of many Brexit politicans:

Brexit: an update (Aug 2022): https://www.youtube.com/watch?v=IUiJxH2pclM