Well, the reapers are gonna destroy them anyway. But just the same, having the krogan just sit it out is not an option, since the Primarch's terms for committing forces is getting krogan on Palaven.
What do you want from me exactly? To cure it with Wreav and no Eve? Is it really that simple to you?
You keep mentioning Wrex, but like Eve says, he's a mutant. I've played the game multiple times that way. It's cool... but it's not happening now. I don't have the get out of jail for free card this time.
Consider the scenario without that around. Just look at the Krogan by themselves, and tell me it's that simple.
The reason I was considering Okeer's path is because he provides a sliver of hope for Krogan, even under the genophage. He's brutal, of course.. and doesn't care if millions die. He thinks most Krogan are weak anyways and just wants a small number remaining, who survive whatever is thrown at them. Grunt is his model/template, but nature would also produce some tough bastards who stood along with Grunt.
"Numbers alone are nothing. The mistake of an outsider." "My work will purify the krogan. We will not be restored. We will be renewed." "Too many weaklings live. Every survivor is branded as precious. This has produced more coddling than your collective human teats."
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In the end, the real problem is that Brian Kindregan is gone (the original writer for Tuchanka and Grunt). I don't see any of his legacy left in the game...and whether they still have this backup plan in place. Same goes for Chris L'Etoile and his original take on Legion ("The Geth build their own future"). That was totally thrown out of the window. In ME3, they just play on emotions and don't really address these previous, sophisticated points about evolution. Everything hangs on Female Shamans suddenly...who survive because of human test subjects. Or Geth depend on Reaper code, instead of their own efforts. And we're all supposed to enjoy this... because of the "feelz".