What would cause my barely used green bearing to do this?

I wasn’t even trying to start something because the only thing I asked initially was “What is wrong with tapered bearings?”. Then all these hotshot drag racers started defending green bearings to back up their intelligence by purchasing these revolutionary Green bearings. It’s classic. Defend what you bought because you think you make good decisions even if you see evidence otherwise. And just because you haven’t seen failures because you don’t use your equipment like others do means that they are the dumb ones.

7-1/4, 9-1/4, Ford 9in, GM 12 bolt, every FWD car ever made. All use ball or straight roller bearings, no taper bearings to be found.

There's no downside to running green bearings, there are millions upon millions more cars out there running "green" type bearings vs a tapered bearing. Plenty of them high powered.