Baron Opal II
Legend
[Side Note - Define "Strong". As strong as a human, strong human (Bullroarer?), goliath, strong goliath? Any numerical value allowed by the rules regardless of how high?]That’s the problem though. You can absolutely have your weaker halflings. That’s 100% supported by the rules.
But I can’t have my strong halflings? Why not?
Because having Hervé Villechaize and Andre the Giant being able to dead lift the same amount without magic is jarring to the suspension of disbelief. Because having realism in the game means that you can apply your real-world experiences to the game world with reasonable extrapolations. Sure there is magic involved, but the baseline should have some reasonable extrapolations to our general experiences.
Now, I'm excluding a middle here. If you want to put a 15 in your halfling's strength go for it. But, the average goliath should be stronger than the average human which should be stronger than the average halfling. The strongest halfling should be weaker than the strongest goliath. Again, barring magic like a girdle of giant's strength.
The rules should encompass this, as well as having a sidebar to allow for generic, point based races where you can just play whatever you want without limitation.