I also have tall man syndrome, where no matter how big I get, at 6'3" I still look skinny.
Yeah, that's just the genetic lottery.
Although the tall guys that are serious lifters at my gym (incidentally, the biggest gym in Canada), generally only have issues bringing up legs and calves. Their back and arm development can match a short guy's, and obviously is far more impressive because of the reach.
A tall guy with 16" arms and a 5'4" guy with the same couldn't be more different. The fucking size of their arms blows your mind just because of how long the insertions are.