“Does anyone disagree with that?”
All the people who come with that stupidity have never seen anything the previous Rebbeim ever said or wrote. Every single taayne you have on Lubavitch in it’s seventh generation I’ll find you in previous generations. People like LerentNishtTorah get nispoel by Shtreimelach and bekeshes, therefore think the previous Rebbeim were somehow different. In truth, no Lubavitcher Chassidim wore Bekeshes, just regular long jackets, and later on, short ones. They didn’t have the hats of Hungarian and Polish Chassidim, they wore a Kasket. And ONLY Beis HoRav wore a spodik, on special occasions. Sorry to ruin it for you LerntNishtTorah, Joseph, and anyone else.
Eating Mezonos before Davening is from the Tzemach Tzedek, the third Rebbe.
Not sleeping in the Sukka is from the times of the Alter Rebbe, the founder of Chabad.
Shlichus always existed, but in it’s current form is from the Frierdiker Rebbe (6th Rebbe).
The special Koch in learning Chassidus was always there, and became part of Sidrei HaYeshiva with the opening of Tomchei Tmimim by the Rebbe Rashab, the fifth Rebbe.
And so on and so forth…