Well, you cannot go round blaming Brexit for everything, willy nilly. I am currently in Australia and they are saying that prices have gone up 20% post covid: Obviously due to Brexit.
The pound dropped around 10% against the dollar last year, largely due to Trussgate. But, even so, how does that explain the reported current increase in bass prices? Answer: It doesn't.
Brexit has happened, and is unlikely to be reversed anytime so, whether we like it or not, it's pointless going on whinging about it and blaming it for things that it blatantly isn't responsible for. There are enough things it has caused, but it's still pointless moaning about it. It'll just do your head in (well mine anyway).