England is a shithole right now. The ability for young people to move out of england to the EU would be a brain drain. Of course you'd block this chance to improve peoples lives
Its already happening, with or without this. Many of the smartest most productive people I know have already moved away after brexit and this only seems to be increasing.
Who the fuck wants to work for a country that actively hates you and wants to shoot its foot off at every given oppertunity.