Coins are built over trust and bitcoin has been building this trust over 8 years. It is not owned by miners, or by a company managed by a CEO, its is owned by the people. Bitcoin cash does not have this capital of trust and after a DDOS attack, in 30 minutes the price dropped from $2800 to $1500, it simple does not have the ability to store value... and the value is trust.
Some miners are leaving bitcoin, who cares? Others will replace them... Money is where people are, not where miners go.
BTC forever!