In the grand scheme of balance, I'm against significant racial stat differences.

Initial, Everquest and FF11 had this realism effect in there. But I think it'll lead to further alienation.
The large races had significant combat advantages, but at a price of not being able to enter most cities ~ less vendor access.

The way players want to stack a certain class on Primal fights, I feel will probably discriminate further to excluding certain races for this stacking.

A certain moment stands out in my mind on racial stats. I recall being in a party just outside of Jeuno (or inside, the route toward a tower guarded by gigas). A level 29 Tarutaru Warrior that had full HP, Protect and Shell up, wearing chain mail, had a shield (don't know if it was leveled), got hit once, then within a few seconds, the enemy followed up with a Screwdriver attack and killed him. As a White Mage responsible for healing, that moment horrified me pretty bad.

I honestly can't remember if he had Berserk or Defender up, his sub job and/if it was leveled, and I'm pretty sure I didn't have Stoneskin yet. It left no room for error, he had to be topped off or he would die. He tried tanking again and I believe the party didn't work out in the end. I couldn't keep him alive against that mob. Versus a Galka Warrior tank that got hit with two consecutive Screwdriver attacks and still remained standing.

When racial stats play that much of a difference, I have to say that I'm against racial stats.