TwoSix
Everyone's literal second-favorite poster
Well, there's two separate issues, really.
The first is that if you remove the stat adjustment from race, you need to put the points back into the system somehow. You also ideally do it in a manner that works for both point-buy AND for rolling. I'd say the best place is on both class (A free +2 to your main stat or stats) and background (a +1 to one of 3 or so associated stats, one of which is always Con.)
The second issue is more aesthetic. If you're not going to define race/ancestry in terms of their stats, how exactly are you going to change their definition?
The first is that if you remove the stat adjustment from race, you need to put the points back into the system somehow. You also ideally do it in a manner that works for both point-buy AND for rolling. I'd say the best place is on both class (A free +2 to your main stat or stats) and background (a +1 to one of 3 or so associated stats, one of which is always Con.)
The second issue is more aesthetic. If you're not going to define race/ancestry in terms of their stats, how exactly are you going to change their definition?