I'm not a psychologist, so I'm not going to answer, rather I'm going to ask more questions.
Not so concerned with the manufacturing and sale, but the usage of said products, and in particular what is meant by "etc..."
First, that etc.. can go south pretty quickly. Nevermind dogs, what about celebrities that you'd like to have sex with? Can I just go buy a Lady Gaga doll? I wonder how she'd feel about that, legally and personally. What about just regular people you might be obsessed with (i.e. can I take photos/video of a work acquaintance and have them grafted onto a doll; futuristic yes, but not far off..)? You want taboo? What about... children and infants? Go fuck all the fake dogs you want. I'm more worried about the inevitable progression that leads to real people, especially the little ones.
Second, and I truly don't know, but would it (having sex with a doll) help or hinder the cognitive control mechanisms one has? i.e. if I fuck the Stacy doll, will that keep me from stalking Stacy at work, or will it make me want her more? Would using a child doll be considered a viable 'release' for a pedophile, or would it embolden them to go find the real thing? How exactly does a relationship with a doll 'progress'? Conversely, could they be used therapeutically, say to help treat serial rapists? Will we buy dolls for sexual predators and set them free, the way we now simply medicate those who would decapitate others and send them into the community (yes, this happened in Canada)?
I really don't know. I would guess - but only guess - that pornography has probably helped at least some people refrain from seeking extra-marital sex, being enough to quell their private desires; but I could also see how someone would get bored with it and want to move on to something more 'real', if that really is their 'thing'. I know, marital infidelity is fairly innocuous compared to the crimes of stalking, rape or child molestation, so I hope I don't appear glib in my comparison, I'm just thinking out loud.
I'm not so worried about the private rights aspect (the Libertarians can jack it off all they want!). To quote a certain former Liberal Canadian PM who will remain unnamed, "There's no place for the state in the bedrooms of the nation." I'd sincerely rather not spend my time trying to tell other people what to do. Do what you want, yes, but only if it's good for you. Questions about morality or legality sound pedantic, like looking for someone to blame or to regulate. I'm more concerned with the more primary question about how healthy a psychological practice it really is, for the individual, in the first place.
Can of worms. Well done with the controversial topic!

I would say it depends, do human beings have any control over what they find sexually attractive?

The question conflates morality and legality, but the answers do not. An activity can reasonably be both legal and immoral, or moral/amoral yet illegal. Clarification, please.

I don't really care myself. As long as it isn't hurting another person in any way I don't care what people do. It's not for me to decide what anyone does and what I consider moral and right is subjective so I don't expect others to live by that, just folks I allow in to my inner circle are held to a morality standard for me. The only line I draw is when someone starts to effect another person's well being physically and in some cases their mental well being. The mental well being part would only apply if someone specifically told me how it was effecting them and then I could decide whether intervention is needed or not.

Interesting question..... put it into perspective, the act of having sex with an animal is a criminal offence in Canada, and considering that the USA and Canada have formed their laws on the same sources, I would suggest that Americans are under the same laws. Having said that, libertarians would say that the government have no place in controlling what is sold and made along those lines, conservatives would have a debate, social conservatives would say "no way!" and many, not all, liberals would probably be on Amazon ordering the toys.