That is their point. They grew past it.

The UK can’t blame Brexit on the Romans.

> The UK can’t blame Brexit on the Romans.

You're reaching thousands of years ago and missing the much more significant event of the Norman conquest. And I would say that the Normans actually did influence Brexit to the extent that there's a confusion about continental vs. English identity that's only expanded over time.

1,000 years is no time at all, in the age of writing.

> I would say that the Normans actually did influence Brexit

Influenced, yes. Can be blamed for, no, much less their descendants today (who aren’t British).

> Influenced, yes. Can be blamed for, no, much less their descendants today (who aren’t British).

I agree!

This is different than saying the British are responsible for many current day conflicts (e.g., India/Pakistan, Israel/Palestine) which is much less controversial.