whereas it looks like you think it is only a risk if your preferred Brexit does not happen.

Nothing to do with my preference. The anger you spoke of relates to the referendum result not being fully acted upon.

Steve is right that in the past Britain has avoided this path

Apart from the referendum result, and apart from the success UKip started to gain before the other parties copied their promises, or pretended to. Even so they won 12.6% of the vote in the 2015 election.