I agree with you on this point, Tesla will not establish global dominance based on selling vehicles below cost. That is where anti-trust rules could be successfully used to stop Tesla. If global dominance did occur, it could only be due to one thing, because Tesla, using first principles relentlessly, grew into such a lean and efficient organization that no other company with the required manufacturing capability could even come close to offering a similar value without selling below cost and bankrupting themselves. I think it's conceivable to have the potential to manufacture and deliver a superior vehicle for 50% less cost than any standing competitor. This is not my prediction, just a scenario that I think possible.
In any case, I think it's quite unlikely Tesla will ever rise above 50-60% market share but not for the reasons you lay out in your previous missive. It's because I expect other manufacturers to re-organize and develop lower cost structures so they can copy Tesla's cost-lowering innovations, perhaps not on equal footing with Tesla but probably closely enough to be able to compete (eventually). But there is no guarantee this will happen. I think your list of reasons are poorly reasoned, none of those things would absolutely prohibit Tesla from becoming globally dominant. It doesn't even read like a list of things that prohibit anything from happening. It looks more like a list developed to explain why something you think could never happen, could never happen. That's not how one reasons using first principles. If you provided one good reason why it could never happen, I would have no choice but to admit it was impossible.
The future holds many surprises and no one can predict exactly what they are.