Not sure I'd agree that nobody cares about policy. But "rightfully so"? Because different faces, or parties for that matter, tend to pursue similar policies? It seems to me that that is a good reason that people
Problem is that there is whole show about (relatively) minor differences of opinion and these are greatly exaggerated, creating the illusion of real choice. Whereas the various "faces" somehow wind up agreeing with one another on exactly those policies that the people they supposedly represent do not favour.
A two-party system is in practice much more like a single-party system (ie not democratic) than it is like multi-party systems where coalition and compromises are required to achieve majorities.