Nonsense. If the market moves strongly to Bitcoin Cash over Bitcoin Core, then the narrative that 'Bitcoin Cash is The Real Bitcoin' will have been proven true.
It's not a matter of Bitcoin(TM) brand, but who controls the toy. Would you invest in anything hijacked by the 3 stooges?
Every craptocoin token is completely centralized and either controlled by 3 miners or 3 proof of stake holders, so I guess you're advocating everyone dump for silver?