But none of those things would directly contradict things that the christian god had previously revealed to humans.
God explained what love means and commanded us to follow the example of Jesus.
We can be certain that perfect love does not mean drowning a quarter of a million innocent people.
I can agree with all of that.
If we can't be certain of that fact then christians have no way to follow Jesus' command to love.
Non-sequitur.
Should they give generously to the poor or drown the poor? Who knows? Both are perfectly loving acts.
Silly.