I also live in the Netherlands, and if I restricted myself to only parking in secured parking locations with gated access and cameras, I would only be able to cycle from my office... to my office.

This (obviously) precludes you from cycling anywhere you might want to go (home, the shops, your friends houses, a restaurant, a bar, a cafe).

If you restrict yourself to parking in locations with cameras (e.g. stations), your bike will still probably get stolen, especially if it is expensive (I know people who have had their bikes stolen from station bike parks with cameras). I myself had the front wheel stolen from my bike that was parked between 3 CCTV cameras, next to a busy metro station, next to a shop with a security guard, and across the street from the main police station in the city.