φέρων is a participle and does not mean “brought”; it would have to be “bringing”, which makes no sense in the context – “bringing all things”?
φέρω is the actual verb, and it indicates “to bear, carry”, as in bearing a burden or carrying a load, or “bear/bring forth”.
This is a common mistake: setting aside a plain clause by appealing to the overall statement. It’s a sort of reverse cherry-picking, a way to ignore unwanted points.
Verse 3 is a subclause of a statement about who the Son is that begins in 2b and continues through the end of 3. φέρων links back to ὃν, οὗ, and ὃς of the preceding subclauses and in that context is not about the relationship between Jesus and angels but about Who the Son is.
Reducing God to human limitations is always dangerous.
In the context of ancient thought, it would be more accurate to say that if God’s creations could exist on their own then they would themselves be gods because they would no longer be contingent but self-existent.
I don’t know where your prejudice on this comes from, but it is a flaw that makes you ignore the glory of God as continuous Creator Who holds all things together, maintaining them in existence. It reduces God to being nothing but a super-man with human limitations. It results in you forcing human definitions onto the scriptures rather than hearing the message the Spirit put into those scriptures.
When you make something it is not dependent on your constant attention because you are not a creator, only a shaper – when you can command things into existence by giving an order, then the comparison between you and God could be valid, but as it is you are making a category error because you are using things you did not create whereas God is calling into existence things which did not exist. It is certainly not anything like what a dreaming child does because the child can only dream of things he has not created because God is the Creator.
Saying that God should make things which would then not depend on Him for existence is just deism warmed over – at best. It is also a denial of the apostle’s declaration that in Christ all things hold together, which tells us that if He stopped holding them they would cease to exist – really the same point the writer to the Hebrews makes, and is also made elsewhere by John.
There’s that prejudice of yours showing again. What did someone do to you that you warp everything through this filter about religious oppression?
If it’s an “invention”, its an invention of the Holy Spirit since it is a theme than shows up in at least four different writers/sources.
How is that even possible? All that scientist do is tell us what God is up to, and they can only do that because of the foundation that the scriptures describe, that God is faithful and not whimsical, and thus He runs Creation according to rules He selected. If He didn’t hold everything together it would cease to exist, but He does hold everything together and does so in a dependable manner, thus making science possible.