That's dogmatic. The easier way to understand that gravity is not used to determine why you stand on the earth, is the force called boyancy. This follows laws of physics, density. But which way? That's determined by electrostatics. These are magnetic forces that we can observe with simple tools.

It's a real force but much weaker than forces created by density, but still actually measureable and, orders of magnitude, stronger than supposed and unproven gravity.

Thus you stand on earth because you are denser than the media around you and you are not flying off because of that. Also, there is a magnet force that basically tells the boyancy force which way to go.

So, gravity isnt a force and it's just agreed average of acceleration observed when things fall. If you think about terminal velocity, you have really garbled the gravity nutts. Because significantly more aerodynamic objects do not fall significantly faster. That is the supposed gravity laws are bending and it's not a force, again.