Nichiren is known to have directed particularly harsh criticisms at other sects, but as some people have pointed out, such criticisms aren't necessarily limited to Nichiren, and that even in contemporary society his religious criticisms raise issues worth studying from various perspectives.
日蓮はその中でも「地獄に堕す」などと激しく他宗を論難した人であるが、これは日蓮だけに限ったことではない、という指摘がなされており、近代に至っても様々な角度から論考される問題を含んでいる。