What an unpleasant attitude you have today. Besides it was probably the fault of the English anyway.
Areas of Wales with big English communities had larger leave vote in 2016, according to study
www.theguardian.com
We'll brush over your short - or perhaps convenient - memory regarding your somewhat unpleasant attitude towards the closure of the Port Talbot steelworks shortly after the referendum, I seem to recall you crowing about it being the workers own fault because they were so stupid to vote to leave...
Shall we move on to your rabid, and exclusionary nationalism? I wonder if you would describe people from Pakistan, India, the Caribbean, or Europe who had moved to, and settled in,Wales in such a way - no, of course not, they would be Welsh, because they live in Wales. How odd then that you would single out another nationality for apparent
crimes - one might almost believe you harboured some loathing prejudice against people based purely on where they were born and their accent...
So no, I don't believe that your horror at these job losses is remotely real - in fact I'm sure that had the UK remained in the EU and direct ferry routes between mainland Europe and Ireland been brought in, with their attendant environmental benefits for those who live on the road routes, you'd have been perfectly happy. Perhaps you would have been sad about the job losses in what is an already chronically deprived area, but you'd have accepted them as the inevitable, and necessary, price for wider environmental protection.