But since Brexit, there are "more barriers, more red tape and much more difficulty to actually come and work over here."

Yes that was the point.

Common feedback from the British nationals placed by Pro-Force was that many of them wanted to 'do their bit' at time of national crisis but did not see this as a long term, viable option

Because...? Because the value of British labor is so devalued from decades of immigration?

'Nigel' to become least-favored baby name in the UK./s