Comparing views held in 1994 with views held in 2017, it is clear that nothing is driving a lot of people to the far right. Quite the opposite is happening. A sort of relativity may be in play here, making it seem as if other people are moving to the right if the observer is moving to the left.

Histograms of the change, for each party and year: https://imgur.com/QJd2gRB