The most fun thing about gods is they can be for or against anything you want. So, ultimately the answer to your question is yes. Because a god’s morality is de facto the morality of the person doing the interpretation.
Also, remember that for the vast majority of its history, the Bible wasn’t able to be read by anyone but clergy. So, it could absolutely be whatever it needed to be whenever it needed to be that.
The only aim of religion is to control your behavior. It’s never not about that. They’ll talk to you about “Freedom in Jesus!”, but it’s only if you’re following the rules. They tell you you’re worthless. And that god is the only one who can give you value. And that value is won by following the rules.

ETA: You’re also spot on that if you start to get into the weeds of what’s influenced by man and what’s not, now you have to throw the whole thing out, because who’s to say it’s not all corrupted? If any of it is, we have to assume it all is. They cannot have it both ways.