Is not altering Nichiren's teachings to look with contempt on the envoy of the Buddha?

"The eyeless and earless may be excused, but let all those persons who have eyes and ears examine and heed these sutra passages. What persons now can say, “I read these sutra passages, I believe in them!” and yet direct all their hatred at Nichiren alone? If they truly believe these sutra passages, then let them call forth the [three types of] powerful enemies described in them and show proof that they do indeed read these passages and believe them. Unless they do so, then to be angry at Nichiren, who reads and recites these passages as they are intended to be read, is to be angry at the passages themselves, is it not? And to do so is to look with contempt on the envoy of the Buddha!"