"Let us build this data center in your back yard and in return you'll get..."

Conspiracies aside, this sentence still needs to be satisfactorily completed for people to buy in. Because right now people know the best case is they'll get nothing.

And on higher level. "You are spending astonishing amount of maybe our collective money for ..."

Looking at those numbers. Looking at what it does now. And then simply comparing it to anything else and very reasonable some start to question what even is going on...

This is a silly standard and the reason why people make fun of NIMBYism. By this logic we shouldn't build anything at all unless it immediately benefits the people living next to it. (And I don't like how much power DCs are using either, but that should be the argument, not "it doesn't benefit me personally so don't build it".)