Bitcoin system re-branded into Bitcoin Cash BCH

What would you call "The Real Bitcoin", a blockchain that uses the name Bitcoin but no longer works like a Bitcoin system and people behind it openly advocate for using a completely different payment system, or the blockchain that works exactly the same as a Bitcoin system but, out of necessity, had to use slightly different name?

In short, would you decide based on name or how the system works?

Using analogy with Coca Cola, would you call the real Coca Cola product that has exact same formula which gives exact same taste but is branded differently, or the one that has same branding but different taste due to formula being changed?

I would of course chose the taste and how the system works, over name any time, which is why I chose Bitcoin Cash BCH over BTC, as BTC no longer works as the original Bitcoin system and Bitcoin Cash BCH does.

Bitcoin Cash is the real Bitcoin

My video is at DLive