Can we get choices that really matter and have a effect?

[Valkyrie_Lenneth]

Well sure, when you shoot Mordin in the back and then you murder Wrex to cover up your crimes, they all stay dead. There's no going back from that.

Murdering Mordin
https://www.youtube.com/watch?v=qVuMXjpANmw
Murdering Wrex
https://www.youtube.com/watch?v=LbF76Sswj-Q

I'm not saying all choices didn't make a difference, but in the end, not one did. Do you like red, green, or blue?