The problem with the theory is that in 1968 the strikes were supported by the main body of the French, and the tumoil was leftist v. far leftist (DeGaulle v. Stalinists).
The current unrest is between "outsiders" and a faction-strained centrist government. If people react against the uprising, will the credit go to Chrirac, or the Polish "political plumber," Sarkozy?
(Not a Watergate reference: Sarkozy is a Polish immigrant who is secretary of the interior and leader of conservatives within the UMP party, and the primary political opponent of Chirac's right-hand man, de Villepin. The French left has tried to direct anti-immigration anger against Polish Catholics, making plumbers a stereotypical "scary foreigner." Apparently the French have already learned to rely on Poles to get rid of the sh!t they create.)
Don't know if anyone has told you this, but Sarkozy, while Catholic, is of Hungarian, Greek, and Sephardic Jewish ancestry, not Polish.