It is also because elections seem to have little impact on policies. This is due to many reasons but you will see polling get more and more extreme because voters keep telling politicians what they want, and nothing changes.

I will add, this isn't terribly surprising in Europe. In Italy, due to flaws in their political system, you have had politicians parachuted in from the EU repeatedly to run the country...I am not sure what people expect. If you place significant limitations on democracy and then ignore public opinion, people will get annoyed.