Voters across the Netherlands have veered far to the right politically. The shift has been triggered by economic and cultural anxieties that have whipped up fears about immigrants. It’s an extreme example of a trend being felt across the continent that could tilt the outcome of this year’s European Union parliamentary election. Far-right parties are primed to gain influence over EU policies affecting everything from civil rights to gender issues to immigration. In some European nations, the shift to the far right has begun to gnaw at the foundations of democracy.