You're right about Protestantism. The Bible read with the Sola Scriptura makes no sense.
Jews wrote the OT in a dramatic way with a lot of exaggeration. Just like special effects to make a lasting impression. It was their writing style.
Catholics do not read the Bible as Protestants (and Atheists). We consider the OT primarily as historical waiting for Jesus. History show us that some accounts is literally impossible.
Every battle and genocide is a symbol for our inner faith struggles.
Catholicism is not founded on Bible. The NT is a product of Catholicism. Outside Catholicism the Bible is pure nonsense.
Amazing how Atheists here seems just to take the Sola Scriptura approach. If Sola Scriptura is the only approach so I'm an Atheist too.