I see you're having difficulties understanding, so let me lay it out:
A talented, or at least, versatile artist can produce pretty much anything you ask of them, in whichever style you want it.
You have decided that an artist is not allowed to take on this particular kind of requests, and that they are somehow manipulating someone, if they do.
Fact is that no one really "needs" art. Art is always just for pleasure/entertainment, aesthetical or otherwise. There is no reason for you to condemn this, if you don't condemn all art.
Either way, there is no manipulation involved. There are customers demanding a product, and there are artists delivering that product. Where is the victim?

Your streamer example is different. There you have a case for manipulation. It really depends on what that streamer says and means, though.
The viewers may hope for more than what the streamer is willing to deliver. That is not the case for the artists, we are debating.

Lastly, no. Just because your opinion is that something is evil, it doesn't mean that it is not up for debate. Your opinion is not fact. You are not God. Is that where you get your opinion from, btw? Religion?

You can be addicted to porn, but unlike heroin, it is something that you can quite possibly consume in a healthy manner.

Yes, that is indeed a repetition of the retarded take, and time can not prove you wrong or right.

When casinos make commercials, where they make the situation out to be in the customers' favor, you may call it manipulating. It is advertising addictive materials, that can really mess up people's financial situation.

Some artist who is just selling what they are asked to by their customer, is not manipulating anyone. It is not manipulative, and it is debatable whether it's "evil".
It's also debatable whether it's a "vicious circle".

Is it a sin to not rape children on the regular?

Mostly the part where you try to make artists out to be masterminds, manipulating the furries.
It's generally a stupid take, but that part was indeed retarded.

"Not even if you were the last man in my cage."

A black guy had a change of heart during a court case. He had become a better person and they had a group hug because of it.

That's what I thought.