It’s not quite that simple, because there have been hundreds of Bitcoin forks and not all of them have had the privilege of getting dumped like BCash

First, a fork would have to have enough momentum or interest in it for there to be a market made for it (listed on exchanges, able to find buyers, etc.)

If there isn’t infrastructure and at least some community, mining, and economic holder support, forks are irrelevant.

We are probably past the point of a successful hard fork being possible.