How are dwarves with bonus to con, and elves with a bonus to dex not fit the lore? And, the change won't increase the variance if races dnd. It'll be human, followed by anything remotely human (like certain tieflings) looking like half elves then elves then dwarves then whatever. The changes make the races more similar which is not good. It makes the choice of races less important which means the choice matters latter. Choices should matter more.