its way more complicated than that. The main issue is runoff. In short, cows shit. That effluence has to be disposed of. The issue is, cows poo in fields, the

its way more complicated than that. The main issue is runoff. In short, cows shit. That effluence has to be disposed of. The issue is, cows poo in fields, the rain comes and washes it into watercourses. That then finds it's way into rivers and lakes and causes large algal blooms that kill everything. The more productive a farm, the bigger the runoff problem. As everything has water in the Netherlands, runoff is a massive problem(its a big problem in the UK, but we have other issues that are more pressing in the eyes of the public). The traditional solution would be to drain Makermeer, expand onto that and have done with it. (https://en.wikipedia.org/wiki/Flevopolder https://en.wikipedia.org/wiki/Flevopolder was "drained" in 1962) but thats not going to happen anymore. The Dutch are not going to have food shortages. its more an issue of livelihood.