Saying, as whitewave and maizie have, - there is a growing crisis in healthcare staff levels due to a massive drop in recruitment of healthcare professionals from the EU, farmers are reporting difficulties in recruiting agricultural workers for fruit picking, etc., no-one seems to have any idea how our representatives are going to negotiate an exit from the EU whilst at the same time making overtures to and entering into lengthy and complicated discussions with other large economies - is not opinion it is fact.
So just saying, as ninny did, "I don't agree with your opinion" is a statement based on nothing. What counter-argument do you have to address these fairly major issues? You may well not care about guaranteeing the position of EU workers here but if no assurances had been given to them, there may have been an influx of disgruntled elderly pensioners returning to the UK, requiring housing, health care and pension credits.
Added to all these issues, May does not command a great deal of confidence or respect here or in the EU - and no one really seems to know what is going on. It doesn't look too impressive at the moment - and the EU negotiators have said as much.