All I need is to know that Buddhism teaches that there are things we should avoid. Things that are not beneficial. That's the rose you deny exists.Start with the definition of sin not what some people say it is.
Definition of SIN
an offense against religious or moral law; an action that is or is felt to be highly reprehensible; an often serious shortcoming : fault… See the full definitionwww.merriam-webster.com
You seem to think that Buddhism is the same as your religion in its structure. It isn't
There is no god in Buddhism, no god given laws no original sin, nothing that can be forgiven by a god or higher power no punishment or retribution that can be imposed by a god. In Buddhism the individual is responsible for his own suffering and can end it at anytime without the forgiveness of a god
Buddhism follows a different conceptual framework from the Abrahamic religions, Judaism, Christianity and Islam. As a result, many of the ideas and definitions found in Buddhism differ from those found in other religions. The monotheistic idea of sin found in the Abrahamic religions is a foreign concept to the Buddhist belief system.
This is a case of there not being an adequate English word for the Buddhist concept.
I've provided you with enough evidence already.