Sura IV:23-24 "Forbidden to you are your mothers, your daughters, your sisters, your paternal and maternal aunts... Also married women, except those whom you own as slaves. Such is the decree of God".
Mohammed himself had Marya, a coptic Christian given to him by the Egyptian governor. Her sister Shirin was given to his grandson Hassan. Rihana was a Jewish slave taken by Mohammed when he killed her husband and 800 others of the Banu Quraizah tribe. Juwairya, also Jewish, was taken as war booty when the Banu Mustaliq tribe was slaughtered. She converted to Islam and Mohammed married her. No doubt out of love for the killer of her family and neighbors!
Sura IX:29 "Fight those who believe not in God nor the Last day,
Nor hold that forbidden Which hath been forbidden By God and His Apostle, Nor acknowledge the Religion Of Truth (even if they are) Of the People of the Book, until they pay the Jizya With willing submission And Feel themselves subdued."
Sura XLVIII:29 "Mohammed is God's Apostle those who follow him are ruthless to the unbelievers but merciful to one another."
Sura: IV.89: “They would have you disbelieve as they themselves have disbelieved, so that you may be all like alike. Do not befriend them until they have fled their homes for the cause of God. If they desert you seize them and put them to death wherever you find them. Look for neither friends nor helpers among them…”
The call to kill all apostates, those who renounce Islam or convert to another religion, has been extended to the non violent Bahaii and Ahmadiyya, as no doubt their non-violence attests to their non-Islamic beliefs. It has also been used against any other Islamic group that the beholder reckons diverges from
true Islam ie Sunni vs Shia and vice versa, which is why the bombings in Iraq, Afghanistan, Pakistan etc are either not condemned or only with excuses.
The real reason for the lack of criticism, in my estimation, is fear of the consequences and no support from the authority of the Koran.
Sura IV:34 "As to those women On whose part ye fear Disloyalty and ill-conduct,
Admonish them, refuse to share their beds, beat them;
But if they return to obedience, Seek not against them Means."
For those who believe there is grounds for mutual respect and friendship:
Sura: V.51 "O ye who believe! Take not the Jews And the Christians For your friends and protectors."
and the quote that was used by Saudi school textbooks to declare all Christians swine and all Jews apes:
Sura: V.60 Those who Incurred the curse of God And His wrath, those of whom some He transformed into apes and swine"
The Koran is not a long book and worth reading. As it follows no logic, nor train of thought as we know it, it might be best to obtain an annotated copy. It is usual to have a translated copy parallel with the original Arabic as only the Arabic is the true word of Allah.
You might also want to follow
the protracted thread about so called racial profiling which went into an extended debate about the supposed equivalencies between Islam and the other monotheistic creeds.