Right now things are pretty bleak for UK citizens and license holders alike, the jobs seem to all be opening up in the EU requiring EU citizenship.
I would put a lot of this down to the restrictions on UK air travel. Once these restrictions are removed and UK air travel is really allowed to takeoff again the UK job market will expand and it will be limited to UK citizens.
In future there will be a lot of UK pilot positions exclusive to UK citizens whereas previously all of Europe could apply. At least this is what I expect - there may be light at the end of the tunnel.