That would assume that the entire world hasn't already tried this a thousand times over.

Measurements are standardised communication tools. If you start changing the definitions, things fall out of the sky and on your head.

No, changing definitions was exactly how we ended up with SI units. That was a very good (and necessary) thing and definitely not the sky falling down.

This mindset is why the US is still using barley seeds as a standardized unit of measure.

Glad we never changed them and still drink in hogshead, use the original foot reference, and never resolved what base is a megabyte. ;)