dear sunyellow, my respect for Christianity and Judaism, and Christians and Jews, does not conflict with the Quran but rather originates from it. i have many friends who are christians and jews because i know on the subject of friendship which you quoted above, that specific verse was about war not peacetime. others verses attest to that...
"As for such [of the unbelievers] as do not fight against you on account of [your] faith, and neither drive you forth from your homelands, Allah does not forbid you to show them kindness and to behave towards them with full equity: for, verily, Allah loves those who act equitably." (Quran 60:8)
"Allah only forbids you to turn in friendship towards such as fight against you because of [your] faith, and drive you forth from your homelands, or aid [others] in driving you forth: and as for those [from among you] who turn towards them in friendship; it is they, they who are truly wrongdoers!" (Quran 60:9)
"Of the people of Moses there is a section who guide and do justice in the light of truth." (Quran 7:159)
"And We caused Jesus, the son of Mary, to follow in the footsteps of those (earlier prophets), confirming the truth of whatever there still remained of the Torah; and We sent him the Gospel, wherein there was guidance and light, confirming the truth of whatever there still remained of the Torah, and as a guidance and admonition unto the God-conscious." (Quran 5:46)
"Verily, those who have attained to faith [in this divine writ], as well as those who follow the Jewish faith, and the Christians, and the Sabians – all who believe in God and the Last Day and do righteous deeds-shall have their reward with their Sustainer; and no fear need they have, and neither shall they grieve." (Quran 2:62)
"Among the people of the Scripture (Jews and Christians) is he who, if entrusted with a Cantar (a great amount of wealth, etc.), will readily pay it back; and among them there is he who, if entrusted with a single silver coin, will not repay it unless you constantly stand demanding, because they say: "There is no blame on us to betray and take the properties of the illiterates (Arabs)." But they tell a lie against Allah while they know it." (3:75)
"Not all of them are alike: Of the People of the Book are a portion that stand (For the right): They rehearse the Signs of God all night long, and they prostrate themselves in adoration. They believe in God and the Last Day; they enjoin what is right, and forbid what is wrong; and they hasten (in emulation) in (all) good works: They are in the ranks of the righteous."(Quran 3:113-114)
And there are, certainly, among the People of the Book, those who believe in God, in the revelation to you, and in the revelation to them, bowing in humility to God. They will not sell the Signs of God for a miserable gain! For them is a reward with their Lord, and God is swift in account. (Quran 3:199)