Before fossil fuels our cities were ankle-deep in horse shit, and when a horse died the owner dumped the carcass in the river. Some level of pollution is in inescapable price of civilization. We shouldn't be reckless or wanton about it but it's unreasonable and uneconomic to ever clean up all of the mess.
All or nothing fallacy. The argument is not to eliminate pollution, the argument is to stop generating greenhouse gases. You can already see the effects of climate change and it's guaranteed to get worse.
I don't understand why you're making excuses for carbon pollution.