God is Triune with Father, Son and Holy Spirit. Allah is singular, has no son and shares with no one.
God is Love. Allah preaches hate against the enemies of Islam.
God is Truth. Allah encourages lying to deceive the infidels and is a deceiver himself.
God is our Father. Again, Allah has no sons. Mankind is enslaved to his will. If you want to break ecumenism with a Muslim, start praying the Lord’s Prayer.
(I’m playing devil’s advocate here because I agree with you...but)
God is Triune, while Allah is singular....the Jews also believe God is singular, do they not? Don’t Christians believe that we worship the same God as the Jews?