When you look at the big picture the Bible tells the story of the battle against God by the Luciferian forces who want to destroy God's creation, Man. Lucifer was kicked out from the place of God and condemned to roam Earth "seeking whom he may devour." In doing so you will see that we on Earth must make choices and be ready to discern between truth and the counterfeits that Lucifer has made as traps for us.
It is all very civil of you to say that we must respect Islam, but the reality is that we must give Islam a hard look before we can respect it and Islam must pass the tests or it not only can be disrespected it must be utterly rejected as Luciferian doctrine.
Jesus brought with him the New Covenant. No longer is Man under the Law. We do not stone people for adultery. We try to work things out without fighting by turning the other cheek. We love our enemies. When Jesus died he said, "It is finished."
In order to believe that Mohamed was a prophet of God and not Lucifer we must look at Mohamed and ask what he brought to this. What did he add? Is it in line with the work of Jesus?
Have you read about the man Mohamed? If you haven't, you should, before you "respect" him and his message. I suggest that you start with Sirat Rasoul Allah. Scroll down to the index and begin here: http://www.faithfreedom.org/Articles/sira/index.htm
You will find that Mohamed denies the divinity of Jesus and regressed us from loving our enemies to settling our disputes with torture, rape, assassination, theft, slavery and war.
Islam claims that Mohamed was the "perfect example of a man", and the "last" prophet. So whatever Mohamed did will be copied.
I urge you to study this man and then tell me how he is connected to Jesus.
What was in Mohamed's message that Jesus left out? That Jesus forgot to tell us?
If Mohamed was a prophet in the line dating back through Jesus, Abraham and Noah as Mohamed would have us believe, what was it that the world needed to learn from Mohamed?
Lucifer has always tried to counterfeit God's messages to Man. We must test all things. "By the fruits of their works they shall be known." If you "respect" Lucifer's message how can you help those who have already been beguiled by the message? Or is it your intention to remain quiet and let others do the work?