Imperium kills you for the crime of being inhuman.
Valid crime in Wh40k, considering the dangers of that.
Horus heresy/Chaos in general proves being a human ain't any better, tho. At least Tau only have one Khornate champion. How many do Humans have, proportional to their population? Oh, that's right. Literally uncountable numbers of heretics.
Or destroys your planet for the crime of being unlucky.
Uh, what?
"Oh, look, your planet happens to be at minor risk of being taken by Tyranids/Daemons/Necrons/people who looked at me funny, time to blow it up"
Or eats your soul for the crime of being a Psyker.
Very valid, considering that unsanctioned Psykers tend to result in reality hemorrhage and literal deamons coming out of unfortunate Psykers asshole to cause some serious mayhem.
And considering that more and more humans are becoming psykers? Besides the whole "You had no choice in this, and rather than trying to bother training you in any way, we're just going to feed you to our ravenous god-furnace, where you will die slowly and agonizingly as your very soul is torn to Shreds." Emperor protects, indeed.
OrTau...not sure where you're getting them lobotomizing every human they see. Every instance of gue'vesa I've ever seen has them being treated better and with lower casualty rates than their Imperial equivalents.
If I only saw lifes of noblemen on some glorious Paradise World I would assume that life in Wh40k doesn't suck.
I like the assumption you make there. It's full of shit, but I like it.
Also how you didn't actually give a source for the lobotomization thing. Sterilization and work camps? After what amounts to a rebellion and aiding and abetting the enemy? Hell, Tau are nice and you don't even realize it, because Imperium would've just exterminated the population when they conquered the world in the first place. Tau gave them a chance, and they threw it away.
Tau have a massively different doctrine than Imperium.
SO ANYWAY
Have we already talked about Tac Cog not being in ranked matches?