Help me know if I got the difference between "due to" and "because of" right.

Due to: The growth of my business is due to my efforts. [due to is an adjectival phrase]

Because of: My business is growing because of my efforts. [because of is an adverbial phrase]

Another difference between due to and because of is that I can use the gerund form only with because of:

He fainted because of excessive bleeding.

Now I have a question:

Which one of them is correct:

We are here because of you/We are here due to you?

I've heard the phrase "because of" more in this situation, so I'm confused. Is us being here also an action.?

why does "due to" you sound weird in this sentence?