Oh...I have done my research. If Georgia had Colorado's election laws those who feel disenfranchised would jump for joy. Not sure why you consider it "restrictive" that Colorado sends out 100% mail in ballots to all those who are registered to vote.You asked why, and the answer is the Constitution provides for states to make their own election laws. You might want to run down the "non elected official" thing too. Non-elected officials are who do the work of counting, disqualifying, verifying, certifying, etc. They're generally volunteers. But you're good with the ID requirement, I assume.
Go ahead and do your own research. You can take a look at Delaware's election laws too if you like. Please tell us if you find Jim Eagle.
Again, if Georgia allowed 100% mail in's, I am sure they would take it.