You have yet to prove that there is any struggle with Halflings within D&D, let alone in other games outside of it. There are personal preferences about them here, but no proof of them not adapting outside of Middle Earth.
The proof is D&Dstyle dwarves, elves, gnomes, orcs, and hybrids appearing in many nonD&D works as major races but D&D halflings not. If halflings had the broad and versatile elements many claim it does, it would be found in the forefront of more games or even appear in them.