They settled a small city of specialists in the Chainelanes in 3070. Then they got cut off by Jan 3073. No matter how good they are at moving people, they cannot move so many millions in 3 years, and without Leviathans. Notice that they only have an outpost at Itabaiana, likewise on Trondheim, another in the Chaine Cluster, an "office" at Halfway and Nykvarn.
So? With 25 Aimags, 5 Khanates and 17 worlds, they have a total of 428,670,000 people in the Dark Age. My point has always been that the Sharks had a much lower post-Reaving population to rebuild with, and none of your points have actually rebutted it.
Just for the record, using the timeline in Warriors of Kerensky, the Ghost Bears moved their entire Touman, including civilians and infrastructure, to the Inner Sphere in just under five years. And their pre-relocation population was much higher than that of the Sharks. (Also, we're all SharkFoxes here, we discuss rather than rebut O:-) )
Potemkins carry about as much cargo as Leviathans, and the Sharks have lots of them. But rather than looking at the WarShips, let's look at conventional JumpShips, because four Behemoths, eight mammoths, or carry as much cargo as either WarShip. And the Sharks have tons of them. They lost
60 45 jumpships at Salonika and still apparently have lots. There were actually almost enough just at that one engagement to have run a command circuit if they'd chosen to do so.
The Sharks had major merchant missions in the IS going back to operation revival, but the new wave of dealings with the IS started in 3061 with the Draconis Combine and 3064 with general merchant missions. Around this time they got their first planets. In late 3068, the Khans decided to relocate the entire clan. They accelerated the already ongoing plans to relocate in 3070. The Sharks lost their last major relocation fleet at Salonika in 3072, but had refugees from Vinton coming in several years after that.
So they had the time and ships to relocate. Not as much as the Ghost Bears, but they also had a larger fleet and fewer civilians to move. It's not a slam dunk that they got most of their civilian population out, but there's also no evidence that they didn't, and the evidence we have suggests that they had the time and capability.
Finally, while Semi's portrait in WoR mentions how she utterly distrusts Spheroids, what about the other stuff? Do you have a reference? It makes sense and is in character for her, but I don't remember reading it anywhere and want to review.