I'm sure he did. But it isn't the Gospel message, far from it. He saw HIS kingdom as that of this earth. Clearly against what Christ taught.
John:
Jesus answered, My kingdom is not of this world: if my kingdom were of this world, then would my servants fight, that I should not be delivered to the Jews: but now is my kingdom not from hence.
It wasn't just Islam Popes killed, how about the Cathers?
The church of Christ is spiritual, not of the flesh, IMO. That's another god, the one Jesus said the Jews followed who was a murderer. No different than stoning someone to death, like Stephen, for seeing differently.
Islam is from Ishmael. Christianity is based on the Gospel, not the OT. To drop the OT is to see the clarity of the Father.
Well, violent heresies such as Islam are from Satan, and were overrunning and destroying Christianity with great slaughter. HALF of the ancient Christian world was lost to Islam - HALF of it. The other half was preserved, or taken back from the Muslims, through war and war alone.
So, Christianity survived BECAUSE it took up the sword and fought. In the West, Catholicism fought it successfully. In the East, the Byzantine Empire failed in its long fight against it, and was swallowed up. Christianity survived in the European parts, but in Turkey, in the Levant, in North Africa, in Egypt, in Iraq, it was crushed down to an oppressed (and shrinking) minority.
A different view would be that to fight Islam and other heresies was to fight the devil directly - that people went over to the Devil and worship him, and take up the sword to conquer the Kingdom of Christ, which is Christendom. Christians, then, had to take up the sword in response or be overwhelmed and crushed. They DID take up the sword, were called forth by the Pope to fight in unity, and the Pope was inspired by God to call for Crusade and to bless the soldiers who volunteered and fought with God's promise of forgiveness and salvation.
(Remember, please, that to the people whose view you don't accept, God lives in the Church on an ongoing basis, so it it illegitimate to up the Scriptures AGAINST the Church - can God be divided against God? Of course not. And, as said above, on matters of faith and morals, the Catholic Church IS God, because the Holy Spirit dwells there and animates it.)
Obviously you're not going to agree with this, but this is why people like me don't see it your way. Jesus said what he said through the Gospels, but God has interpreted the Gospels for us and told us what he meant. When the Catholic Church speaks on these things, that IS God speaking. God is more authoritative than human beings when it comes to Scripture. The Catholic Church IS Scripture - ongoing Scripture - it IS God speaking, here and now. The Scripture is merely the record of what God said BACK THEN, but the Catholic Church is God speaking in the here and now. So the Bible is a record, but not a law book. The Catholic Church is God giving the Law now, and from age to age. And just as God changed the law in the Bible from OT to NT, embracing new people and situations, God continues to reveal the law and his intent from year to year by speaking aloud today, through the Catholic Church.
Of course you're not going to accept that, but that's what I believe.
Catholics just don't believe the same things about the way God works that you do.
To you, the Bible is final. To us, the Bible is a history book written by the Church. God's authority is final, and God lives IN the Catholic Church and speaks THROUGH the Catholic Church, so therefore the Catholic Church's interpretation of the Bible is God telling the world what the Bible means, whereas anybody picking up the Bible and reading it is just relying on his own impressions.
Needless to say, there's never going to be meeting of the minds between us on this matter, but you should at least understand WHY Catholics think as they think, WHY your arguments from Scripture fall on deaf ears there on subjects on which God has given further revelation (such as matters regarding Mary that are not revealed in Scripture but were revealed later).