To be totally frank, I can't agree. What annoys me about Liam is his treatment of Rosetta--and this because it's a derivative of the author's self-professed "inability" to write romance properly. I don't disbelieve what Rafalga said in the least--what I do disbelieve is the author's claim itself: it's not that he can't write romance, it's that he
won't write a romance that doesn't interest him. He's written an entire LN about the "little sister" that he "likes", and has had a manga commissioned for it as well. There's a difference between not being able to write a romance that at least goes normally (i.e., instead of the yuri-cucking, Angie and Olivia simply continuing to express their love for him--novel idea, that) and choosing to wrench the romance in some retarded direction (the yuri-cucking), and I am certain he did not do the latter to the "little sister".
After all, the "main" story continues without the two actual female leads but with said "little sister"--and this for no real reason.
Regarding Liam having Amagi made as such, you're focusing on the sexual element of their relationship to the oblivion of everything else about the two: there is
no one in the story that has the position in Liam's mind that Amagi does. No one's word holds as much weight with Liam, no one can contradict him the way she does, and he trusts no one as much as he trusts Amagi. Amagi's creation and the criteria for it are a product of his having experienced grievous treachery at the hands of a woman; the fact that Liam treats her with unparalleled importance despite her absolute submission to him is a contradiction of your sentiments.
That being said, his having a sexbot created for his pleasure alone isn't immoral--at the very least, you'd have to explain to me how it is, because I do not see any solid argument for the idea. That being said, Liam's having done so and his immediate treatment of Amagi as more like a human being than all around him, who insisted that that she was less than--which in turn led to Amagi's Pinocchio-like circumstances, over time--paint a much more wholesome picture than your criticisms indicate.
If one finds himself incapable of understanding something,
@Kernanator , the reasonable thing to do is ask questions.
Not that you should or even would: judging by your sticker-talk, you're the type that wouldn't ask any in good faith and would instead prefer to be heard without actually saying anything substantial.
There are plenty on this forum who've done exactly the same thing for, apparently, exactly the same reason.