Username,
It’s really beneath me to talk to a Lubavitcher like you, but in the hope that perhaps my heartfelt words will have an effect, and encourage you to return to Judaism, I’ll address you directly.
Pesach:
I believe that the Lubavitcher “Chumros” of Pesach are really Kulos, because by not eating products of other Yidden, whether homemade or processed with a good Hechsher, you’re being Motzi Laz on the Kashrus of other people, and it’s Mechze KeYuhra, as many Gedolim say regarding beards.
Secondly, before Pesach is Purim, and as I recall from last Purim, and the one before, and the one before, for a good few years, you’re not MeKayem Seudas Purim and Simchas Purim BeHiddur – if at all. For as you surely know, many Lubavitchers, especially Bochurim, instead of having a normal Purim like the rest of Klal Yisrael, go out from house to house, or prison to prison reading Megillah for others, while neglecting their own Purim. I remember once eating a plain bagel in a Prison parking lot somewhere deep in the Florida panhandle to be “Yoitze” Seudas Purim… This is not the way Yidden have celebrated Purim for centuries, and it’s absolutely wrong. I used to not drink at all on Purim so I’d be able to drive to lain Megillah for others, people who weren’t even frum, never mind Yeshivish. It’s a travesty.