Salaam sister Mariyah,
You said:
"Either way, killing random people is in no way justifiable if you read other Quranic verses."
I agree with you, sister.
You also said:
"I think reading Quran brings out the best and worst in people...It's basically your choice, which is why you have to read Quran with an open mind."
Indeed. As brother Joseph Islam expressed in one of his articles: "No matter how accurate a source, and indeed the source of the Quran remains 'perfect' (i.e. God), it is the fallible mind which interprets the source which causes the variance."
With respect to the Quran teacher you alluded to, I completely disagree with the claims he made when he said that taking Christians as friend is haram or that Allah likes men more than women. Such claims find absolutely NO support from the Quran.
As brother Joseph Islam alluded to in one of his articles: Any and all religious assertions or theological standpoints/practices must find unequivocal support from the Quran; any theological standpoint whatsoever in the name of God's religion, must provide clear, unambiguous, unequivocal proof and authority from the Quran for their position; as it is the Quran that is the primary and ultimate authority from God. That said, the burden of prove would be on the Quran teacher you mentioned to support his assertions (i.e. haram to be friend with Christians, or men being more liked than women) solely from a Quran perspective.
If we examine in particular those Quranic verses, which individuals (such as the Quran teacher you mentioned) usually cite as support for their assertions, it becomes obvious that those verses, in fact, does not support their claims.
So, with respect to that Quran teachers claim about men being favored more than women by Allah, there is absolutely NO verse in the Quran supporting it. The verse most misogynistic Muslims (and non-Muslim critics) cite to support this claim is the following verse:
"Men are in charge of women by [right of] what Allah has given one over the other and what they spend [for maintenance] from their wealth. So righteous women are devoutly obedient, guarding in [the husband's] absence what Allah would have them guard. But those [wives] from whom you fear arrogance - [first] advise them; [then if they persist], forsake them in bed; and [finally], strike them. But if they obey you [once more], seek no means against them. Indeed, Allah is ever Exalted and Grand." [Quran 4:34]
But Brother Joseph Islam explains that verse beautifully in another discussion (link below):
http://quransmessage.com/forum/index.php?topic=436.0And, with respect to the Quran teachers claim about having Christians as friends being haram, this too finds absolutely NO support in the Quran. The Quran is best understood when verses do not conflict with one another (or when a command in one verse does not conflict with or contradict the command of/in another verse). That said, it becomes obvious that that teachers claim (about Christian friends being haram) is in contradiction of the Quran. And here's why. Allah has told us in the Quran that we (Muslims) are free to marry from 'people of the book' (meaning Jews and Christians)(see:5:5); so how can being friends with Christians (or Jews) be haram when Allah has already said we can marry them? Therefore that teacher’s claim is false. Those who make the claim that being friends with Jews or Christians usually use the following verse to justify their claims:
"Let not the believers Take for friends or helpers Unbelievers rather than believers: if any do that, in nothing will there be help from Allah: except by way of precaution, that ye may Guard yourselves from them. But Allah cautions you (To remember) Himself; for the final goal is to Allah." [Quran 3:28]
Brother Joseph Islam explains that verse beautify in another following discussion (link below):
http://quransmessage.com/forum/index.php?topic=260.0Please also visit the following articles by Brother Joseph Islam, which touch on some of those issues:
http://quransmessage.com/articles/people%20of%20the%20book%20FM3.htmhttp://quransmessage.com/articles/marriage%20with%20people%20of%20the%20book%20FM3.htmhttp://quransmessage.com/articles/aggressive%20(mis)translations%20of%20the%20quran%20to%20enslave%20women%20FM3.htmI hope this helped. Please feel free to continue asking questions on this forum and I and the other respected members on this forum will try our best to answer them for you, God willing.
Peace,
Hassan.