Should a Dayee be forceful if the Non Muslim refuses to accept the message of islam ?

Dawah means to call, to convey the message of God. The duty of a dayee ends after he has conveyed the message. A dayee has no right to issue judicial order against one who is not ready to accept his message. There is a clear verse in the Quran: "Your task is only to exhort, you are not their keeper." (88:21)