Anthropomorphisms and figures of speech. God is Love. There is no single instance where any of the biblical authors reveals that God is hate. Love does not hate, although some men hate love.
A loving God as portrayed in the churches/Church today is incompatible
Incompatible with what? With hate? Correct. St. John reveals that God is Love.
But I find nothing "incompatible" about God in the Old or New Testament when viewed from God being in sovereign control. I would suggest you have the wrong soteriology
Christ came to fulfill the law and the prophets. If you engage your verse generator, you will find that law and the prophets is synonymous with love.
God did not come to establish that He is in full control, but to save mankind by freeing it from the bondage of death. If you think otherwise, your soteriology is an oxymoron.
If God's sovereignty and the wrath of God are "anthropomorphisms and figures of speech," why do you presume "God is love" isn't?