Our problems are “real” only because they make suffer us or those we care for. Our looks or income, for instance, seem to be a problem only when they fall behind the common standards of beauty/average salary. In a world where obesity considered attractive and is not a danger for your health, it stops being a “real” problem. Thus if, together with our friends, children and all those we care for, we could move to the idealized virtual reality, we would solve all the “real” problems that Eliezer described.
The fact that such a move does not appeal to many rational people suggests that Existential Angst is no less “real” problem than poverty, obesity etc.