Proponents argue the technologies will limit the effects of climate change. In reality, this type of "geoengineering" risks further destabilizing an already deeply disturbed climate system. What's more, its full impacts cannot be known until after deployment.
Reminds me of the proliferation of e/acc accounts when I was still on Twitter. Although I am mostly pro-tech, I indeed think climate change is probably a little bit too large-scale to trust some random VC-funded startup to solve it with some utopian tech approach.