We have different perspectives on a Biblical story, so your conclude that God is of my own making? Do you want to know my conclusion?
If you think that some stories in which God commands genocide are to be tossed away (there is literally no way to read that as metaphorical) then you and I are very much the same.
I choose to also toss away the supernatural stuff and the invisible being stuff and the pillar of fire stuff.
We only differ by degrees.
We have different perspectives on a Biblical story. End of story...
Mine requires less "invisible subtext".
If we were reading a Stephen King Novel I'd be OK with that being our primary difference. But we aren't are we? We are talking about the establishment of FUNDAMENTAL TRUTH.
You didn't come to Yahweh God through pure reason. No, you heard about the faith (if you are a Cradle Catholic you were raised in it, no choice) and it was put in your head. That God is, indeed, the God of the Bible. Sure people lard all sorts of their own wishes on God all the time. And you absorbed some of other people's views of God.
You needed the Bible. Even Catholic revelation wouldn't accept something that gainsaid God's word I would assume. I would be VERY surprised if a Catholic saint fell into a trance and gave God's holy word that the 10 Commandments were no longer valid and the Church would say "Hey, that's legit!"
So you're stuck with the Bible. Which means you're stuck with the description of God. Sum total. And getting those rules WRONG is a VERY BAD THING
in most religions (obviously your new version of Catholicism in which everyone gets salvation regardless of anything else won't be impacted here).
So, again, kudos for you for making your version of God. In a very real sense everyone does. And we all hope other people's version of God looks like YOURS does. A super nice guy with no hang-ups and is really everyone's friend even when the other person doesn't experience this god at all.
That isn't the God of the Old Testament. Not by a long shot. That isn't the God featured in the first commandment of the 10. That isn't the "jealous God" of the OT.
And that God is very much the God discussed by Jesus who said no jot or tittle of the law shall go away.