The alternatives would seem to be "data center powered by non-renewable energy" and "no data center", no?
I see it over and over again in my city in coastal California. Car dealership, gas stations? A-OK, they help me out. Instead let's go do a climate protest of a bank, an Amazon office, and a software as a service company, since they have Big Oil as clients. And let's conveniently forget the massive oil and car infrastructure from our city design, which creates huge amounts of demand for emissions. As long as the enemy is one- or two-degrees away in terms of connection, it's a target to be attacked.
The proposal I replied to would probably increase data center energy usage on balance.