True, tonyav, and France may be getting Poles now. Immigrant labour from the EU certainly woke some French workers up. When the Port Vauban, Europe's biggest yacht harbour, was built in Antibes, the locals were delighted at the prospect of all the jobs servicing the boats. The employment of locals lasted all of a season. Thereafter the workforce was from every EU country but France because owners soon discovered that French workers didn't turn up when expected and would leave jobs half-done, and had a relaxed attitude to jobs.
I employed a French builder there. The only Frenchman he employed on the job was the plumber and that was only because the fraternity of plumbers was so strong. He even employed an English sparks at one point.
In recent years, it's true to say that the French firms and workers have upped their game: that's probably to do with having EU competition in workers and occasionally takeovers of French companies by non-French companies.