you are talking about two different things here: availability vs cuisine.

it's super easy to go to albert heijn and get really tasty ingredients and cook amazing food. it's also super easy to find great restaurants that are not dutch, and get incredible food (shout out to tacolindo, in amsterdam west).

but dutch food is incredibly bland, focuses way too much in things like mashed vegetables with sausage. you can only eat so many stamppot until you are done with it.

even dutch people say that while yes, you can cook literally anything you want (my wife and i cook brazilian food literally every day), natives in general do not do that.