I firmly think that we would be better off in the EU and are taking a huge gamble in leaving. I suspect that there will be an enormous amount of effort required just to stand still and even as "just" a holiday home owner am wondering what the Brexit fall out will be. I am sure that many who are resident or work in France are quite anxious about the future.
But, equally, May's stance might be the only rational one. There is an old joke that the herd instinct amongst stock market traders makes sheep look like independent thinkers - certainly many economic ups and downs are more to do with feelings and sentiment as anything and you can get massive feedback effects as everyone rushes out of (or into) a particular asset or market sector.
Given that it is all about perceptions grumbling that we're all doomed and it's all going to be a failure will tend to be a self fulfilling prophecy.
Similarly, it is clear that the EU will not want Britain to be better off (in terms of trade with the EU) once out than it was when a member because there is a real fear that other nations could make the decision to leave if we are.
Thus going for a "soft" Brexit is impossible - both politically at home because it will require too many concessions and on a wider scale because we will be seen to "lose" in the negotiations.
If we go for a hard Brexit and saying we will go for no deal over a bad deal May is attempting to set out a position where we cannot do worse than expectations.
So I don't think May has any option but to put a brave face on it and reassure the children that all will be well.
We also have to factor in the possibility that Le Pen could win the election. This is no longer impossible although I think it remains improbable. The trouble is that the run-off will almost certainly be Le Pen vs Filon or Macon and i don't think I would care to bet on either seeing her off. If she does win that will really upset the apple-cart and I find the prospect distinctly more worrying than Brexit at the present time.