It's called "Target Eye" my friend. Your "Dominant Eye" rules. In real life; which extends to gaming as well, in an actual shooting range you would learn which is the eye you use to aim and shoot with.
You are right handed you will hold the weapon in your right hand and vice versa. PUBG Pc (on Steam client) let's us change which shoulder we look over when we shoot.
EA are excellent gamemakers and are master's of details; The Sims are proof of this and I'm sure they will fix this issue in the future.
I am left handed as well and need my WASD keybinds changeable in all my games; although it's not always available I hope it will be one day. Much love to everybody.