If bitcoin/crypto is chopping sideways GUARANTEED Coinbase will be chopping sideways as well
How? Does Coinbase not make most of their money on the spread?
The implication is that when crypto goes sideways, trading volumes drop, and thus, even though spread might be same or even better, the volume drop will have lost them money.
Bitcoin doesn't produce anything, Coinbase does.
What you're describing is speculating / gambling, betting on some kind of soaring event happening.