User blog comment:ChrisL123/Isolationist England/@comment-32656-20120819052820

Cromwell invested a lot of time, money, and effort into keeping the rest of the Isles down otl. Entirely no reason why he would not do so even with these changes.

Nor is any of that a reason for his son to be able to rule or not be overthrown. Really, that makes it more likely he would be.