Future Free Trade Agreements

I have been listening carefully to the Secretary of State, and his argument seems to be that, on our own, we will be nimbler and more able to negotiate good trade deals, but he must know that size matters. As a market of 500 million, there is 10 times the opportunity for profit in the European Union than in the United Kingdom. Why should we get a better trade deal with the United States, for example, given the smallness of our market and of the opportunity for profitability compared with the European Union? If we are not going to get a better deal, why are we doing it?