fg = -mg*(upside down delta)*phi
Disprove that mathematically or provide documented measurements that contradict it.
If you can't, or don't even know what that equation is, than any shred of credibility you might have still had shall be erased.
Furthermore, I'll bet good money you couldn't illustrate how the formula (delta*lambda)/(lamba0) = (ag*z)/c^2 would be equivalent to your "spin gravity", I'd love to show they're not equal then list the empiracle evidence and measurements that have proven this formula, BUT YOU WON'T PROVIDE ANY FORMULA.