After viewing this video from Wolfheart, I think the easiest solution (outside of just ignoring those of us who are dissatisfied with the changes) is to just go full Tasha's and let humans, half-elves and shield dwarfs keep their higher attribute score totals, but let them be distributed as you see fit just like every other race now. It would be the easiest thing to implement out of the various hybrid systems and would address the issue of those races being nerfed and the proficiency compensations being weird and not helpful to many builds. Again, I would prefer a toggle between the old system and the new system, but this is an acceptable compromise to me and it would probably be significantly easier to implement.