YOU SAID:
if someone wants to leave let them
INTO JAPANESE
誰かが去りたいなら彼らに任せなさい
BACK INTO ENGLISH
If someone wants to leave, leave it to them
INTO JAPANESE
誰かが去りたいなら、彼らに任せなさい
BACK INTO ENGLISH
If someone wants to leave, leave it to them
That didn't even make that much sense in English.