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Two Sides Of The Same Coin - Blog Posts
So different and yet complementary.
Okay that’s a really interesting thought but…
The symbol of the pendragon house hold is red supporting as backdrop to the golden dragon. So while your hc makes sense the red (Arthur) doesn’t bleed and cover the gold (Merlin). So, Arthur abd merlin(red and gold) can’t begin the golden age until the dragon lord Merlin (hence the gold dragon in the symbol) has the red background support(Arthur).
I love merlin don’t get me wrong but he simply exists as a way growing Arthur. So while they are two sides of the same coin, yada yada  one cannot exist without the other the hate towards magic, which is represented by the pendragons for the majority of the show cannot exist without magic. Merlin was born with magic. His entire being is magic at its core.  The way I interpret this is the only way we can get the golden age is by excepting the parts that we were taught to hate so for the golden age to happen, Arthur must come to  accept  magic, accept merlins magic. So when this acceptance happens, the golden age has arrived, because the golden dragon meets the red as one. 
I hope that makes sense because it took me forever to figure out how to halfway word it into making sense.
Omg I was just think which I’m sure someone else has said this but…
Yk the color of the Camelot seal are red and gold.
Merlin is always trying to save Arthur using his magic which is gold. Arthur always ends up hurt anyways because he’s an idiot but he bleeds which is red.
So yes two sides of one coin and what not. So when Arthur does Albion or whatever it’s called can’t come to its golden age because the red (Arthur) is gone. Leaving only one part of the great Albion which is the gold (Merlin).
Bigger Body Dogday with his Smiling Critter counterpart-