As far as I can discover, we only have Nigel Farage's word for the seven subsequent refusals from other banks. The issue with Coutts is on the record, as there was subsequent legal and regulatory action, etc. I for one don't believe Farage here. He may have been turned down by some other fancy private banks, but that is not the same thing as being debanked.

The notion that banking, of all industries, has been taken over by woke leftists (please supply your own scare quotes for the first of those appellations – I give up) is for the birds. As for the establishment, your own take on this is inconsistent, first saying that the establishment is entirely homogenous and aligned against Farage, and then pointing out that the government of the day helped Farage to get his Coutts account back.