The citizenry may have severe differences of opinion with the leader in charge, but they have so far seen fit to endorse the system that brought him into power. So yes, the citizenry is Trump because Trump is a citizen, and he has won the electoral process that the citizenry did not work up the effort to reform or change to make it otherwise.
So if "the citizens", or some subset thereof, are unable to change the system, then they're assume, as a group, to be endorsing the system and its actions? And to be genuinely represented, indeed manifested, by its officials, even when those officials are aggressively at odds with each other?
There's different degrees of endorsement. There's "agreeing with every jot and thistle of the system's actions" and there's "not trying to violently overthrow the system as bullshit." Most people live somewhere in between, closer to the former position than the latter. Most people want to change the system, but do not dispute the necessity of the system. As such, that means "the state is made of the people" is truer in the consent of the governed sense, and not the dystopian Soylent Green sense. That isn't to say there is no need for large-scale reform and changes; of course there is.
Of course there's degrees of endorsement, there always is. I'm just responding to the notion of yours that "in a republic, the state is the citizenry." Well, no, it's not, and it doesn't need to be - and indeed, there's no real way for it, in fact, to be so. Certainly, it can represent certain preferences of the citizenry, through various mechanisms and political tools, but the state isn't the citizenry, it's an institution with particular powers and structures. That's not objecting to the concept of endorsement, it's just pointing out the distinction.
It's fair to point out the distinction between the elected representatives (and the unelected appointed civil servants, bureaucrats, etc.) and the citizens who elected them. My original statement was to remind minarchists that ultimately, though, the state is still made up of the people it rules. The libertarian inclination to view the state as an alien, nefarious entity, doesn't lead to much room to improve it. Certainly your distinction is correct.
