As an environmental science major (graduating in a few months) no and NO. I won't touch up on the things others have commented already, but it's ludicrous to suggest that grassroots internet spaces are more detrimental than large centralized corporate-owned platforms. Small internet efforts are a lot more conscious about how much space their activities take up, how much energy is spent to run it and how to minimize costs. Large internet platforms that are so spam-riddled and inflated with bullshit they will NEVER be more efficient. The companies that run them won't benefit from real person and genuine content traffic. Not to mention that the data-hogging these companies are doing and the numerous background processes they're running have a footprint of their own.

Tell this dingus to go outside... or rather inside an indie web community