Re: "...I don't even know what belief system he comes from, nor do I care to find out, because it is absolute rubbish. He claims that there are lots of G-ds..."
Yeah!...I read this nutcase's posts, and he's kind'a nutty!
He's not beyond redemption, however, if he's young and as open minded as he claims.
Here's why:
Long ago, a very nice Christian young lady was making an attempt to convert me through her mission activity.
I remember that one day she told me "You know, there are lots and lots of gods...it says so in the Bible."
I thought she was "flaky", to say the very least.
Years later, I decided to read Torah cover to cover and thoroughly study it.
What do you know!...Right there in Torah, Ha'Shem states that there are lots and lots of gods, but that HE is the only one true G-d, having Himself created all the other gods!
Like they say down South..."G-d said it, I believe it, that's it!"
So...maybe if the nutcase did a little more reading, he might come around to a "more accurate" way of thinking!
It's not unusual at all for young people who are "searching for meaning" to arrive at partially true answers during the course of their search.