Christians rarely understand love.

You have failed to understand love. If you have a baby for example, if you love the baby, you don't care if its a boy or a girl. If you love the baby you don't care if it's gay or straight. If you love the baby you don't care if it's the result of complex chemical reactions or if it has an immortal soul - you just love the baby and nothing will change that.

Christians rarely understand love - they can only understand love in proportion to the amount of their own doctrine they reject.