Anyone have any idea where he is going with this?
I’d guess that he would say the both historically have spread their faiths through war.
If you choose to respond to him, I suggest something along the lines of:
"I understand you do not like the catholic church. I assure you I love Christ and my faith centers on him. Whatever you think the catholic church has in common with Islam does not change the fact that this is what the catholic church believes and teaches the faithful:
We believe in one God,
the Father, the Almighty,
maker of heaven and earth,
of all that is, seen and unseen. We believe in one Lord, Jesus Christ,
the only Son of God,
eternally begotten of the Father,
God from God, light from light,
true God from true God,
begotten, not made,
of one Being with the Father;
through him all things were made.
For us and for our salvation
he came down from heaven,
was incarnate of the Holy Spirit and the Virgin Mary
and became truly human.
For our sake he was crucified under Pontius Pilate;
he suffered death and was buried.
On the third day he rose again
in accordance with the Scriptures;
he ascended into heaven
and is seated at the right hand of the Father.
He will come again in glory to judge the living and the dead,
and his kingdom will have no end.
We believe in the Holy Spirit, the Lord, the giver of life,
who proceeds from the Father [and the Son],
who with the Father and the Son is worshiped and glorified,
who has spoken through the prophets.
We believe in one holy catholic and apostolic Church.
We acknowledge one baptism for the forgiveness of sins.
We look for the resurrection of the dead,
and the life of the world to come. Amen.