Buddhism or Ikedaism?

"Two thousand years of propagating Buddhism during the Former and Middle Days of the Law are inferior to an hour of propagation in the Latter Day of the Law." -- Repaying Debts of Gratitude

Nichiren is referring to the Twenty-four Successors and their disciples in the Former Days, Nan-Yueh, Tientai, Chang-an, Miao-le, Saicho and their disciples in the Middle Days, and he and his disciples in the Latter Day. This passage states "Buddhism", not "Ikedaism".