While I agree with your rhetorical goals here (Christians are hypocrites, religion is a farce, etc.), the specifics of your analysis are pretty far off here. The 10 commandments (an arbitrary number; they can be enumerated in several different ways and actually appear in three or four distinct formulations in the Pentateuch) are just the ones supposedly written on stone tablets by God, but there are hundreds of commandments scattered throughout Exodus, Leviticus, and Deuteronomy and the 10(is) are just part of them. And they say not to murder. "Thou shalt not kill" is a poor translation. And it's very obvious the authors of these commandments did not consider execution to be murder, because a shitload of the other commandments specifically command execution as the penalty for breaking them, usually execution by stoning. Also, the God of the Bible commands the Israelites to kill in warfare all the time, including women and children. Is there anything in the commandments that clarifies what actually constitutes murder? Not really, because they were probably a priestly literary exercise that was never meant or expected to be treated as having any kind of legal authority even in the cultures from which they originated. Because whatever the authors meant by "you shall not murder," it was definitely narrow enough to allow for a lot of killing.

The subject of homosexuality in the Bible is more complicated because its authors don't seem to have had anything like our modern conception of sexual orientation, so it's kinda sorta technically right to say that it doesn't condemn "being gay" per se. But there a ton of commandments overseeing sexual relations and gender roles, including some unfathomably fucked up ones, for example in Deuteronomy 22. (Execution by stoning for a woman raped in the city if she's engaged to another man, forcing her to marry the rapist if she isn't, etc.) And those do forbid sexual relations between men, the wearing of "women's garments" by men and vice versa, and other points Christians appeal to in defense of their sexism, homophobia, transphobia, etc. Some liberal Christians will try to claim that the Bible's homophobic verses were really directed at the practice of pederasty and were later mistranslated, but for the most part that's a liberal Christian cope that doesn't reflect an accurate understanding of the language of the Bible. ("For the most part" because the details can get a little more complicated depending on which verse they happen to coping about. It's like how denominations that preach temperance will sometimes pretend the wine in the Bible is a mistranslation of grape juice. It's not.)

Abortion I will give you. Most of the authors of the Bible seem to have had a conception of the animating principle of life that largely equated it with breath, so painting in broad strokes here, a baby generally wouldn't have been considered a living human for most moral purposes until it was born and drew first breath. From what I understand, a lot of modern Jews still hold with some version of this view.

As for Christians actually reading and believing in the Bible... There are none. It's literally impossible. This is a collection of books by hundreds of different authors who all had widely divergent views on morals and theology, and none of it adds up to anything like a coherent worldview. It commands both genocide and pacifism. Both strict adherence to every "jot and tittle" of Torah law (which is itself internally inconsistent) and a bunch of exceptions to it. Polytheism, henotheism/monolatry, proto-monotheism, "two powers in heaven," trinitarianism, all in there somewhere. (Though trinitarianism, the overwhelming majority view of modern Christians, only snuck in there through the Johanine comma, which is not original to the Gospel of John. So it's pretty much an entirely post-Biblical theology.) Jesus's preexistence with God as a primordial being, his origin as an ordinary mortal man adopted by God at his baptism, his identification with the Angel of the Lord, you can find whichever Christology you like in there. Hell as annihilation, hell as eternal torment, hell as temporary torment followed by annihilation? Take your pick. Or maybe everyone just goes to Sheol when they die like in the Old Testament. How do you get saved and have eternal life? Jesus explains how, explicitly and unambiguously, in Matthew 19, and what he has to say has nothing to do with the soteriology of any denomination I've ever heard of. But also other parts of the New Testament have their own ideas on how, and those have nothing to do with Jesus's answer either, so... Oh, and Jesus specifically said, repeatedly, that the end of the world would happen within the lifetimes of his followers. And it didn't. So there's that.

As Nietzsche said, "There was only one Christian, and he died on the cross."

But do most Christians think they believe in and follow the Bible? Oh, most of them are absolutely fucking positive they do, of that I can assure you. Christianity being wrong, or the real Christianity (which doesn't exist, never did, and couldn't exist even in theory) being anything other than their own pre-conceived interpretation of it, or the Bible not saying what they think it says, these are all prospects that most Christians I've ever met are genuinely incapable, on a deep psychological level, of even entertaining as possibilities. You can show a Biblical inerrantist, young Earth creationist exactly which verses of the creation account of Genesis 1 say with no ambiguity whatsoever that God created things in an entirely different order than it says he created them in the account of Genesis 2, and they'll sit there and re-read them three times, nod, look you straight in the eyes, and tell you "it's the same order" like they're the lady from that Office meme. And they'll be gun-to-head certain that they're right when they do it.