@Don’t
The problem with the romance story in Sonic 06 isn’t necessarily because of the human-anthro relationship. It’s because the art direction it’s a mess. The Sonic characters have very stilish cartoonish designs, but at the same time, the world has realistic human beings, which doesn’t match with the style of a Sonic game.
Because of that, the second problem (the forced romance story) is conceptually even worse. If this was a Rober Rabbit world (with Toontown and the real world), the story would have worked thanks to the contextual aspect of the game. But Sonic 06 doesn’t have an interesting story or appealing designs.
I’m not a fan of furry content, but even the film Wolf Children worked because it had appeal. And this is coming from a person who doesn’t like anime.