It may or may not be true, there's a cost of living crisis and parts of Brexit probably don't help but to put it all down to Brexit is just silly. Inflation is sky high in lots of countries including EU countries.
You do seem to love talking about Brexit
but you should remember I didn't clamour for it, shout about it or post about it non stop - there was a referendum and I picked my side. Luckily you can now vote for a government that can't hide behind EU legislation now and can be held to a higher level of accountability.