No. He compared them by implying that they're equivalent, like you are doing, and they're not, and to even suggest that dog shit and horse shit is remotely similar is insane. Horse shit is actually useful to to point of being valuable (people actually buy it). Dog shit is disgusting and dangerous.

You not liking like the smell of horseshit or finding it annoying is irrelevant. I don't like the smell of some perfumes or aftershaves. That's just opinion.

But everybody hates the smell and annoyance of dog shit, and it is a health hazard.

I suspect you are one of those irresponsible owners who let their dogs shit in public places. Just to let you know - the rest of the country hates you.