If bitcoin cash takes over as the top cryptocoin in market capitalization, I reckon it would be bad not only for bitcoin but the whole community as well.
We know bitcoin cash is the altcoin, and it does not have the best developers working on it. I also reckon some miners will start mining BCC because it would be more profitable for them. What then should the basis be for calling either BTC or BCC as the real bitcoin?
Is it the developers, the price, or the hashrate?
Well as long as they exist, this debate will continue.
Both sides will claim that they are the real bitcoin with the best intentions and whatever. For me personally, the deciding factor would really be in terms of market capitalization. If BCH can exceed BTC in market capitalization(unlikely), then it could claim as THE bitcoin.
It definitely will cause a lot of confusion for newcomers. Had a couple of friends ask me lately about what the hell was bitcoin cash.