So we're supposed to LIE? I don't think so. Honesty is an American (and a Christian) virtue. If their religion is evil, such as islam is, then it is expected that we would tell them so.
Allowing them the freedom to believe anything they want is the American thing to do.
But allowing them to act on those beliefs is right out. This is why satanists (moslems by another name) are not allowed to perform human sacrifices. The difference is that satanists at least respect the laws enough to not commit their crimes openly. Moslems just go ahead and kill people
Those who flew planes into the WTC were not doing what Islam commands when it says, many times, to limit warfare as much as possible to the combatants and to show mercy; although they were doing what it commands when it says to fight jihad and such.
The koran is to be read with the understanding that the suras written last override the ones written first. The moslems like to hold up all the "peace", "love", "do good" suras while ignoring the fact that the latter suras are all "Fight against the enemy until he is killed, subdued or enslaved" and "Oh son of allah, there is a jew hiding behind me, come and kill him". A moslem doing what a Christian would consider evil is most likely doing what the koran (and the hadith) tells him to do.
Christians fighting bloody wars or accepting terrorist acts also justify their acts by quoting the Bible, despite the overall thrust of their acts being acting against God's commands - as you see it.
You'll need to expand on the wars issue. Which wars under which circumstances. And which wars other than the crusades (which were not in accordance with the bible) have been done in God's name by Christians?
As to terrorist acts, I'm not aware of any acts of terrorism commited by Christians, as committing an act of terrorism would be denying Christ. Can't be a Christ follower (Christian) and a Christ denier at the same time.
This teacher is not there in class to instruct in Christian virtue, but to educate and be an example of American civic virtue.
And islam is a politico-religious system that is 100% at odds with our founding virtues. The teacher had the right motivations but went about it all wrong. What he should have done was hold obama (I mean osama) up as a perfect moslem and show why islam is incompatible with America. (Something that the moslems have been saying for years anyway)
Consult Thomas Jefferson on what it means to be an American and how to view the religious beliefs of your neighbors.
“But it does me no injury for my neighbor to say there are twenty gods or no God. It neither picks my pocket nor breaks my leg.”
-Thomas Jefferson, Notes on Virginia, 1782
Look up “the thirty year war”, both sides thought they were fighting for “true” Christianity. One side, at least, was wrong. The IRA thought themselves good Christians, and went to Church on Sunday - and tried to blow up innocent people to cause terror the other six days.
Our founding virtues, as seen by Thomas Jefferson....
“Where the preamble declares, that coercion is a departure from the plan of the holy author of our religion, an amendment was proposed by inserting “Jesus Christ,” so that it would read “A departure from the plan of Jesus Christ, the holy author of our religion;” the insertion was rejected by the great majority, in proof that they meant to comprehend, within the mantle of its protection, the Jew and the Gentile, the Christian and Mohammedan, the Hindoo and Infidel of every denomination.”
-Thomas Jefferson, Autobiography, in reference to the Virginia Act for Religious Freedom