I definitely do not think religions are comparable. God is God. He is not Buddha. He is not Allah. For that reason alone, all religions are not the same.
For many who follow the Koran, they believe all who are not Muslim should be murdered. Christians do not believe that all who are not Christians should be murdered but SAVED. TRUE Christians do not gay-bash, they merely use Christianity to defend their cause. Like the ones who killed Native Americans in the name of "God" and like the ones who protest funerals. They are serving their own doctrine so please do lump us all together.
I differ with your view on women as well. Ephesians 5 for example, is the marriage chapter. There you will find "Husbands love your wives as Christ loves the Church and gave Himself for it" That means, to qualify as a good husband, you must be willing to lay your life down for your wife.
Further, you are quoting a commandment. God knew we could not keep them so He decided to send His son, a sacrifice that ends works for salvation and begins grace for our salvation (with works). War is most usually self-defense. Is it not? We are qualified as Christians to defend our Country and our Faith and enforce our laws of the land. Paul killed many Christians before he came to know the Lord and then he changed. Many of God's chosen were evil before they knew Him.
Also, the Bible promises that the prophets within our 100 percent accurate and all others are false. The Bible has proved itself over and over. "The rocks and stones will cry out" He says for those who refuse to believe and we see archaeological finds do prove the Bible.
And one last comment, if you want to know if He is real, ask Him to show Himself to you. He will.
It's a great question and you were brave to ask it.