"le" in this case is a plural direct object reference to something (we don't know what in this case, although whatever it is, is feminine). In addition, the possessive adjective "tue" is plural. These provide context hints that the subject, which is not stated, is plural, not singular.
"le" is not a direct object, there is no direct object in the sentence.
"le" is the definite article used together with "tue"; "le tue" translating to yours.
CreyB answered it above. Because the sentence says "le tue" it means that the subject must be feminine plural, thus referred to as "they".
Because the unspecified "they" in this example are supposed to be feminine. If "they" were masculine it would be "I tuoi". English just doesn't have that distinction.
If they had specifically said, "Io non sono le tue" would that indicate that "I am not yours."? I see this as unsuccessful candidate for political office. He/she is telling the women of the opposing party that he was not their candidate. "Io no sono le tue." July 18, 2018
no, it would not work that way. The "le tue" specifically refers to a plural object of some kind (very specifically, a plural feminine object) which indicates that the subject of the sentence is plural ("they"), instead of singular ("I")
Assuming the "I" is male, I believe it would be "Io non sono il vostro" or "Non sono il vostro". I would be happy for anyone to correct me if I am wrong.