Not all of the Netherlands is liberal. Far from it.
True. For example the SGP party is unique in Europe.
Women are denied membership of the party, the party is against television, radio, gambling, vaccination, and everything else God forbids. A large group in the party also refuses to take insurances. The party supports a theocracy, and their website is closed on Sundays.
http://www.sgp.nl. The SGP was founded in 1918, and have since 1921 always been represented with 2 or MPs, or about 2% of the votes, in some municipalities in the so called bible belt, their support is over 20%:
Although the SGP is an extreme example, there are a lot of Calvinists in this country. Prime Minister Balkenende is one of them. And this group is the same group that settled in Michigan and Iowa. Some Reformed churches still have branches in both US and the Netherlands.