Perfect is indeed the enemy of the good. So we should realize that not everyone values the same things and not single out something as deserving extinguishing just because it's something we personally don't value.
Pardon? We don't all value human lives? I'm not sure we're having the same conversation if your attitude to pollution is "that's just your opinion"
These things are objectively measurable. I don't even know where to begin, your comment is so odd to read idk if I'm misunderstanding you or what part of climate warming leading to all sorts of issues virtually everywhere, air pollution leading to health issues and premature deaths, the ongoing mass extinction that threatens our food system, etc. you're unaware of