We'll still have access to the markets of the 27 other EU nations, what's the big deal about the single market? If they put tarriffs on our goods then we put equal tarriffs on theirs. No win. no lose.

Bearing in mind that trade with the EU is less than ~7% of total UK trade (internal and external).
We should be looking outward to the rest of the world especially the commonwealth for trade instead of being so parochial.
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History is much like an endless waltz: The three beats of war, peace and revolution continue on forever.
However history will change with my coronation - Mariemaia Khushrenada