What percentage of people do you think are affected by AI datacenters?

That argument applies better to blast furnaces than to data centers, but I don't see people complaining about steel. Data centers just don't take up much space or power in the scope of industrial manufacturing.

Your other arguments are legitimate, but "it's a waste of electricity" and "data centers make some significant difference to a nontrivial number of people" are not the same propositions.