I won't say with confidence that fascists haven't looked at it and though "Fuck yeah, no more French" but I feel like that definition is a bit narrow. I don't think there's any implied superiority with Anglish.
To me it seems like an interesting experiment to demonstrate just how much English was influenced by French and how weird and nearly unintelligible it seems when you strip it all out.
There's also an inverse experiment to conceive of an Anglese language if English had leaned more into French and developed into a full-fledged Romance language while maintaining some English phonology.