Taxation (Cross-border Trade) Bill

My hon. Friend is making a good speech in which he is, of course, advocating free trade, in which we all believe—or at least Conservative Members do. Does he, like me, see the profound irony in our discussing how we are going to have to have new technologies, put in new systems and do all these other hugely complicated, very expensive things, in order to cope with leaving the customs union, even though we believe in and want free trade? Does he not think it would be much more simple and sensible just to stay in the customs union?