Yes he was. Verhoeven couldn't escape his ideological bias even if it drove him 1000 miles from home and left him in a forest. Fascism isn't some nebulous force like Sauron's malignant will inhabiting the One Ring, it's a very particular political and economic structure that has to be carefully assembled, and it requires a lot of force to keep it together. Without safeguards society turns into corrupt anarcho-tyranny, that's what it turns into.
Btw, it's pointless to argue with me about this, since I refuse to accept most of the literature written about it as legitimate. The entire topic of fascism has been so politically charged for so long that I consider most resources written about it to be propaganda of one type or another. It's also an argument that doesn't have a place on this forum.