I don't want to get too much into the Brexit stuff on this thread tbh.
But it is relevant in a number of ways and unfortunately it does seem to have been a factor in a couple of questionable decisions. Whether that's the true story I don't know.
Reality is that a lot of our trade deals that have rolled over are on the basis of good faith. In a situation where there are food shortages that won't go far. Our system is already being tested by the changes that Brexit needs and a crisis of this kind during that period is about the last thing we need even if you think those changes are good and necessary.
It leaves us exposed more than other places and more than we would have pre 2016.
That's not a good place to be in right now.