Any fix to the MAX in its present form would be a band aid solution to a fundamentally flawed design
I think that this is a massive overstatement of the situation. Fundamentally flawed? Really?
The reality is the aircraft flew for nearly two years before the first incident. Both crashes related to the AoA vane and crew responses to an "unknown" system, at least the first crash.
The defect is reliance on a single input to a system with a great deal of authority to put the aircraft out of trim. This is significant in an industry where many pilots are apprehensive about hand flying and may have lost the trim response reaction that may have once had, or never did.
The MCAS is fixable. What remains in question is whether regulatory agencies will approve the fix and whether politics will play a large part in the answer to that.