DY -“Not really, he just means as opposed to other types of food for Shabbos which are not necessarily considered a mitzvah.”
Oh, you mean like in 253? If that’s what Mokom Mitzva (Tzorech Shabbos) means you have no Kasha in the first place. 253 is just Mokom Mitzva while everywhere else is Mitzva Gemura. Either way you backed yourself in a corner.
“So you’re conceding that not having cholent is not a tzorech gadol, only a d’var mitzvah, and that it’s therefore assur even according to the R’ma?”
Even if you don’t think my case is a total Oiness, like I explained above, I just explained acc. to you, not having a Cholent would be Tzorech Mitzva Gemura, not like the first part of the Rema in 276 & not like 253 where it is only L’tzorech Mitzva (Shabbos)!