"Will right-wing governments take hold in Europe, tearing at the fabric of Western democracy and Europe's alliance with the United States?" 

Left wing government aka the EU, where many of the leaders are "former" communists, have already destroyed the fabric of western democracy with unfettered immigration from Islamic countries. In 20 years the U.K., Germany, and Belgium in particular will likely be Islamic more than western. Not a good development for western democracies.