I have to leave for an appointment in a few minutes, so I’ll have to provide a short answer. Simply put, there have been all too few of you who make these types of complaints who have been willing to stand with us in demanding the natural born citizen clause to be respected. As a consequence you got Chester Arthur, the Wong Kim Ark decision, and the entire rogue’s gallery of ineligible candidates ever since then. Had the citizens of all political parties stood up and defended the natural born citizen clause, Obama and his subversion of the Republic could not have happened. Given yet another election and another opportunity to stop this abrogation of the natural born citizen clause, yet again there are too few defenders to stop the continued destruction of this safeguard for the Republic and the destruction of the Supreme Court of the United Sates by unqualified appointments.
I could be wrong, but it seems as if your m.o. is just to get Trump the nomination by hook or crook - you know, the "New York" way...
(BTW I reject your premise outright: Cruz is eligible to run and we should not even be having this conversation.)