.....GDP is not growing faster than the debt part of the ratio....
Many will argue that that in itself is a big part of a fundamental problem which is ultimately unsustainable and can't go on 'forever'.
MMT is quite controversial as you would know with many 'mainstream economists' (for what they're worth ?) arguing it is flawed. It is just a theory.
As far as equity indices, 'real' economies and their correlation is concerned I think you'll find there are plenty of examples at various times showing dislocation and I think we might be in one of those very periods right now ?
