In France the Socialists and Republicans got together and dropped their candidates in places where FN looked like winning in order to split the vote. It worked. FN eventually came third. The Socialists effectively let the soft right, the Republicans, win.
France has a rather unique system of an initial vote, followed by a run-off. FN won six areas in the initial election, but the tactics of the others in dropping their candidates lost FN any chance of power.
That is not democracy. If a party gets into the run-off it should be legally obliged to put up its candidate, or it should not have stood in the first place. Had France got FPTP then FN would be in control of large tracts of the country tomorrow.
I get the impression that the French people are moving to the right but are being prevented from being represented by the current political elite.