Most things won't pass your "test" on worthiness. You might be in a lonely group thinking it's a great test.

I'm not sure what you mean.

Most of us have a lot of things which add nothing to the ecosystem and require resources to maintain. Why single out lawns?

Because each yard out there could in principle support at least a little biodiversity: at least some plants, some insects. Curated lawns tend to the opposite.

But plants are "weeds" and insects are "pests." So people spray neurotoxins, and see how much biodiversity they can destroy.

There's no shortage of biodiversity where I live, and my kids sure seem to enjoy the lawn. If there's a problem with certain lawn care chemicals then address that through the appropriate legislative process.

I'm glad to hear it. I'd much rather be wrong on the internet, and have it turn out that you guys have some nice plant and animal life.