I don't think Jesus would accuse you of sin, since gender identity is what they identify as. So if they are asking you to call them something they are not, it's like if I introduced myself as Hark!, I'm not Hark! so by introducing myself as him I am lying. The lie would therefor be my fault and responsibility. You would just call me Hark! so as to avoid unnecessary arguments. It's just not worth the hassle and like I said I don't think Jesus is combing our conversation and actions with a fine tooth comb to accuse, there is an accuser and it is not Jesus, that is the enemy.
"Then I heard a loud voice in heaven say: “Now have come the salvation and the power and the kingdom of our God, and the authority of his Messiah. For the accuser of our brothers and sisters, who accuses them before our God day and night, has been hurled down." Revelation 12:10