Because he doesn’t hold a majority. In the Netherlands parties must form a coalition to govern. It might be difficult to convince other parties to join the coalition given his stances. However, I do think Geert Wilders will become our prime minister. I’m very much hoping he’ll fuck up, the government will fall and a more reasonable person will take over.
I believe no party has ever held an absolute majority in the Netherlands. And there has only ever been one time in the Netherlands when the biggest party did not govern.
Personally, I see two options: the most likely is Geert Wilders will become our prime minister, or (less likely) there will be new elections.
I did ask myself. Then I looked it up and the reason makes perfect sense.
In theory it is possible, in practise it is not. Indeed there are a lot of parties covering the spectrum from left to right.