The whole situation with Mirror Vulcans and Mirror Spock becomes more interesting considering (minor spoilers for Season 1 of Discovery)I got the impression that Vulcans were the same, and it was their dealings with the very-different Empire that made for different scenarios. I'm sure this would be the same of the Klingons. Vulcan, logically, adapted and did what it had to, to survive. The only difference was the Terran Empire.
Mirror Sarek, who we can presume is Mirror Spock's father, was a leading member of a rebellion against the Terran Empire that Mirror Spock is a part of.
In fact, since Enterprise clarified that Vulcans were slaves under the Terran Empire, the circumstances of Spock's conception may have been very different in the Mirror Universe (i.e. Mirror Amanda possibly enslaving Mirror Sarek and then taking advantage of him when his Pon Farr came around, or something unfortunate like that)
In fact, since Enterprise clarified that Vulcans were slaves under the Terran Empire, the circumstances of Spock's conception may have been very different in the Mirror Universe (i.e. Mirror Amanda possibly enslaving Mirror Sarek and then taking advantage of him when his Pon Farr came around, or something unfortunate like that)