This passage obviously requires others to be present in the conversation. The question is then - who are they?
I am not sure how familar you are with Divine Council studies but this is what this verse is about.
Plainly put there are other real gods that exist but they were created by YHWH who alone is the Creator, some of these gods rebelled and others did not - hence Gen. 6 episode.
As far as YHWH being the God of the Hebrews your right once again - famnous in DC studies is Deut. 32:8-9. This mistranlastion of "children of Israel" for DSS "sons of God" when Israel did not even exist at the time Moses is refering to is actually why we have a problem understanding this subject. God gave up the other nations to these gods and took Jacob for Himself - this was in order to bring to pass his purpose, plan, and promises given Abraham - culminating in the person and work of Jesus Christ.
By the way the characterization of YHWH in the bible does not change over time to assuume so would mean you have some other characterization by the Hebrews reguarding YHWH's ontology or character. Just because the bible recognizes other lesser gods does not speak less of YHWH - He is unique in that He alone is Creator worthy of worship. By the way this is not Monolatrism nor Henotheism.
There is alot to deal with on this subject but basically some scribes were trying to protect monothesim by obfuscating other lesser gods. Of course there were many other verses (Psalms 82)as well as older manuscripts (DSS)that show what the text is saying. This has developed a fasle dichotomy that if your a monotheist you can not believe in any other real gods. Some call this strict momothesism. This was a problem when christians were using texts to prove the diety of Christ.
This of course exasperated the problem with the Israelites who did not believe in Jesus as Messiah.
There is too much to write about and explain but if someone wants more info I will try to post it. There are many works mostly scholarly, although there is a recent Phd. dissertation on the subject maybe with permission I can post it.
Keep the Faith