It's not convincing. If those simply numbers (that everyone who is deciding these things has certainly considered) were a compelling argument, then everyone would act accordingly on them. It's not the first time they — all of them — are spending/investing money.

So what do I have to assume? Are they all simultaneously high on drugs and incapable of doing the maths? If that's the argument we want to go with, that's cool (and what do I know, it might turn out to be right) but it's a tall ask.