and the problem there is that the system is designed to present only 2 imperfect choices, so that the 2 parties can seize and hold power. they'd rather begrudgingly share power with each other than let any others join them in the sandbox. and both parties have been co-opted to serve the wealthy, not the people, hence their imperfection.
I think that level of disillusionment is a bit dangerous, because I've seen people starting to support the Chinese way of governance because they say the American one is broken.
please don't presume a state of mind. a lazy response might be "obliviously complacent" and then we get nowhere. you could leave out the direct reference, such as "I think disillusionment is a bit dangerous, because..." (although you still need to tie in the relevance of such a statement) and still make a similar argument that better elicits a charitable response.
but that argument is presumptuous and fallacious as well. being disillusioned doesn't lead most peole to support single-party, state-controlled communism. being insulated and comfortable does lead to complacency and being out-of-touch however.
Because we also have a kletptocracy where the government is designed to serve the wealthy, it's not about being worse by any margin, it's about pointing out what needs to change.