Even if it’s a rhetorical question; in this case the official line is about trusted partnership, and problems with strategic dependence on neighbors with problematic history. Dog whistle being “Trump right wing good, Brussels green-gays bad”, and that gets political points, gotta oppose whatever the other party supports. In reality pretty sure it’s easier to be corrupt in dealings with Trump than with EU (when not well established with EU elites). Or just being Russian pawns and using all this to subvert defensive capabilities and alliances. We got well established precedences in our own history.