Better alternative than stat-less races

[Captain Cap]

Those are the same things

They're not, because an unusually weak character does not cost more.

When you use the word 'should', you are just stating your opinion, not giving a reason for it.

What are your reasons for thinking possibly the strongest woman in the world shouldn't cost as much as possibly the strongest man? Why should absolute strength matter more than how strong they are relative to their species (or gender)?

She already gave you a reason, and it's gameplay: the strongest woman in the world shouldn't cost as much as the strongest man because she would have lower in-game benefits than the latter.

Attributes points are not a thing in the real world, the possibility of spending them how you want has no basis in reality or fiction, they are just a game currency that you spend to obtain in-game effects.