Israelites evolved from displaced Canaanites.
Sons of gods was Canaanite mythology that existed as Israelite cultures formed and adopted some of the same mythology.
It is common knowledge Israelites worshipped a family of deities when pieces of what would become Genesis were written.
This is not even up for debate the evidence is undisputable.
History of ancient Israel and Judah - Wikipedia, the free encyclopedia
The religion of the Israelites of Iron Age I, like the Canaanite faith from which it evolved
[77] and other ancient Near Eastern religions, was based on a cult of ancestors and worship of family gods (the "gods of the fathers").
[78] Its major deities were not numerous –
El,
Asherah, and Yahweh, with
Baal as a fourth god, and perhaps Shamash (the sun) in the early period