I don’t follow. Your first sentence says you do not care about trash incinerators, presumably next to your house. Your second sentence says you care about the smell.

Trash incinerators are very smelly. You are contradicting yourself. I don’t get it.

But if someone invented a new type that didn't smell, it should be allowed. Regulate consequences, not causes. The power substation down the road is disguised as a brick house, because the rule was ultimately about maintaining the look of the area and not about forbidding power substations.