Fair enough, but you must also have some idea of where you want to go when we're "out" -- and that presumably depends on what relationships we can expect to forge that replace the one we had with the EU. If it will be harder to get something with the US, then you may have to be patient and accept a closer relationship with the EU for the time being.
Or, at least, that wouldn't be unreasonable for the leader, whose responsibility it is to get this right for the nation, to think about. As opposed to we armchair politicians who have no say and no responsibility for the outcome.