So I would suggest that the reason Jews lie that they do not proselytize is that they are hoping if they tell you that they do not proselytize then you will agree to treat them the way you are tricked into believing they treat you and refrain from proselytization
I would suggest they do not want you to proselytize because they are in a information control cult and they do not want anyone to challenge the false world view they assert when they do proselytize through their media monopoly