Of course May's "deal" is worse than being in the EU. I don't think that's in doubt. What he really means is that properly leaving is a better deal than either of those. He's maintained that throughout. It's only by willful misinterpretation that could he mean remaining was the best option.
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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