Uhhhm ok..
First off, you're assuming that because Solomon's actions were recorded in the Torah/Bible O.T. that it equates with G_d approving of them. It does not.
Nor does your citing of Deuteronomy 20 and 21 indicate a broadly accepted practice which extended across many generations and encompassed the wanderings of the children of Israel through many lands outside their own.
Secondly, anyone trained in Biblical Hermeneutics - which I am, and you obviously are not, would be familiar enough with the requisites of Scriptural interpretation - exegesis and eisegesis - to know the first rule which is that {contextually} Scripture interprets scripture.
In other words the broader context, historical, cultural, etc... imposes strictures and limitations upon the individual passages being examines, and how much lattitude is allowed in extending a broad meaning or principle from an excerpt.
As well, the uniqueness of the passage must be considered to get an overall guiding notion of the literary context Was it a one-time occurrence, something permitted or even exhorted by laws of the land, was it the outcome of the sinful leadership of a wicked King, or a lifestyle he lived.
That is just a sampling of the range of questions which ought rightly to be asked. Your whole point fails for the lack of support from a thorough scholarly examination, and it cannot be shored up.
In trying to compare the death cult of islam to Judaism, from which it is derivative bastard child, utterly twisted, one must look to the fact that islam has made a wholesale effort to revise key foundational elements of the religion.
Christianity by contrast, has revised nothing major from the Judaic history. They simply refer to the Torah as the Old testament. Those who have sought to do otherwise are rightly reviled as heretics.
Islam also seeks to revise the history of Christianity, insisting that Christ was not the Son of G_d/Son of Man, but a prophet - and a lesser prophet than muhammad. Not only that, but the muhammadans assert that Christians are heretics and infidels for believing that the Almighty would allow men to kill one of His prophets.
Lastly, and most importantly - muhammad the delusional camel-driving, caravan marauding madman did an evil in the sight of civilised peoples of all other major world religions - he pressured Abu Bakr {who became the second Caliph after muhammad} into surrendering his daughter into his hands and house for marriage.
Her name was Aisha, she was six years old or less according to the most reliable evidence, and muhammad consummated with her when she was nine lunar years of age. That is calculated in 28.5 day months, and works out to 8 years 8 months by our reckoning.
mo' was a murderous, greedy, lusty, paedophiliac freak, with his justification mechanism constantly in highest gear to serve his perversion du jour.
A.A.C.
"The Final Crusade has commenced - destroy a megalomaniacal follower of the paedophile false prophet today!"
In Memory of Broadsword!
You missed the point. Which was that anyone can quote a religious text out of context.
Islam is not a "death cult" religion. And what Muslims believe about Christ is irrelevant to me as a Christian.
I suggest you go back and study some more of the Bible from your heart. Because you have missed Christ's most important lessons.