Agreed - I'd say most of the world will be in deeper trouble than the Netherlands since they've been completely ignoring these issues. Most of the coast of Florida comes to mind. The number of homes on small canals that connect directly to the ocean is mind-boggling.

Further, in a worst case scenario where you need to lose a lot of arable land, the Netherlands has zoned itself so that you could "afford" to lose that land while protecting denser cities. At a certain point I see the Dutch putting soil on barges topped by greenhouses and growing on top of the water if it came to that haha.

Of course all of this might mean a significant shift in how the country feeds itself, but the layout is such that you could shift a small minority to denser "protected" places (where more investment might be focused in a worst case scenario) if significant flooding were a problem.