Salam hooreeya
Brother,
if you know in Islam acceptance of any prophets does NOT make you holy.
Holy God will allow only HOLY person to be in His presence.
Where did you get the idea that Holy God will only allow HOLY person in His presence. Satan was in the presence of God once and he certainly is not holy.
Worship of Allah does NOT save any one. His mercy is SAVING you.
I completely agree with you here. God's mercy saves us, not our deeds or beliefs. However, God's mercy does not require a sacrifice of any sort. God can be merciful to whom He wills.
Where is this MERCY in Islam?
There is NO mercy of God in Islam.
Mercy is everywhere in Islam. Every chapter we read of the Quran, we start by reciting
"In the name of God, the most Merciful, the most Compassionate"
God has two names in Islam which depict His mercy i.e Rehmaan and Raheem.
Behead unbelievers and enter the paradise says Islam.
Whoa, where did you get that weird idea? Is that some sort of a joke? The following verses of Quran tell us how to enter paradise.
103.001 وَالْعَصْرِ
103.001 By (the Token of) Time (through the ages),
103.002 إِنَّ الإنْسَانَ لَفِي خُسْرٍ
103.002 Verily Man is in loss,
103.003 إِلا الَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ وَتَوَاصَوْا بِالْحَقِّ وَتَوَاصَوْا بِالصَّبْرِ
103.003 Except such as
have Faith, and do righteous deeds, and (join together) in the mutual teaching of Truth, and of Patience and Constancy.
Al-Qur'an, 103.001-003 (Al-Asr [The Declining Day, Eventide, The Epoch])
Text Copied from DivineIslam's Qur'an Viewer software v2.910
Dont behead anyone and HOLY enter the Kingdom of Heaven says God Jesus.
Regarding heaven, the verdict of Jesus is similar to that of Islam according to the Bible
17As Jesus started on his way, a man ran up to him and fell on his knees before him. "Good teacher," he asked, "what must I do to inherit eternal life?"
18"Why do you call me good?" Jesus answered. "No one is good—except God alone. 19You know the commandments: 'Do not murder, do not commit adultery, do not steal, do not give false testimony, do not defraud, honor your father and mother.'
Mark 10:17-20
So Jesus said that you have to obey the commandments to get into heaven. He didn't say that you have to believe that I died for your sins to get to heaven. Obey the commandments. And that is what the Quran says.
Is christian God the same way evil like God of Islam?
By calling God evil, I'm sure you'll get a lot of Muslims who want to convert to Christianity

. Brother, it is plain from your post that you have no idea whatsoever about Islam, why do you have to pass such ridiculous remarks? There is no such thing as a Christian God or a Muslim God, there is only one God. But tell me, the "Christian God" as you said, people like Stalin and Hitler will go to heaven because of that "God". Isn't sending murderers like them, who have killed millions of people, to heaven an evil act?
Is God of Islam MERCY?- Are you forgiven by him?
039.053 قُلْ يَا عِبَادِيَ الَّذِينَ أَسْرَفُوا عَلَى أَنْفُسِهِمْ لا تَقْنَطُوا مِنْ رَحْمَةِ اللَّهِ إِنَّ اللَّهَ يَغْفِرُ الذُّنُوبَ جَمِيعًا إِنَّهُ هُوَ الْغَفُورُ الرَّحِيمُ
039.053 Say: "O my Servants who have transgressed against their souls! Despair not of the Mercy of Allah: for Allah forgives all sins: for He is Oft-Forgiving, Most Merciful.
039.054 وَأَنِيبُوا إِلَى رَبِّكُمْ وَأَسْلِمُوا لَهُ مِنْ قَبْلِ أَنْ يَأْتِيَكُمُ الْعَذَابُ ثُمَّ لا تُنْصَرُونَ
039.054 "Turn ye to our Lord (in repentance) and bow to His (Will), before the Penalty comes on you: after that ye shall not be helped.
Al-Qur'an, 039.053-054 (Az-Zumar [The Troops, Throngs])
Text Copied from DivineIslam's Qur'an Viewer software v2.910
Does that answer your question?
Is God of Islam your father?- NO. You are slave
Let me quote the hadith
Some prisoners were brought to the Messenger of God. Among them was a woman, searching. When she found a child among the prisoners, she took hold of it, pressed it against her chest, and provided it suck. Thereupon the Messenger of God said, “Do you think this woman could ever manage to throw her child into the fire?” We said, “By God, so far as it lies in her power, she would never throw her child into the fire!” The Messenger of God said, “God has more compassion for God’s servants than this woman does for her child.” (Muslim 37:6635)
Is God of Ibrahim MERCY?- YES. We are forgiven by His Son Jesus?
So hitler, Stalin and numerous other Christians who have killed many people and believed that Jesus was crucified for their sins have a free entry into heaven. Islam is different here. Cruel Muslims who believe in Allah don't get free access to heaven.
Is God of Ibrahim our father?- Yes. He adopted us and called us His Inheritance.
If by God of Ibrahim you mean Allah then I totally agree with you, and He didn't need to adopt us, we were His from the start.
Is any reason left to worship unknown god of Islam?- NO.
Why? Because answer is obvious- he does NOT exist.
Funny, that's the reasoning I was going to use to convince you that the God who overlooks crimes committed by human beings and gives them a free pass into heaven cannot exist. God cannot be cruel to overlook guys like Stalin, Bush etc.
God of Ibrahim LOVES you and waits for you!
Right back at ya!
Peace