Can the reaction of the Moroccan young man, after being advised to stay away from music, be considered a reason to refrain from دعوتنا إلى الله (calling to Allah), or should we continue with it?

A woman's interaction with non-mahram men has limits, such as lowering the gaze, adhering to modest dress, avoiding free mixing, and ensuring safety from fitna (temptation/strife). If she witnesses a reprehensible act (munkar), and there are other men who can denounce this act, then the obligation of denouncing it falls away from her, because it is a collective obligation (fard kifaya). However, if she is the only one who can denounce it and no one else is available, then if she believes she is safe from fitna, she is obligated to change it. But if she fears fitna for herself, she is not required to denounce it, for safeguarding one's religion takes precedence. It is preferable that men's da'wah (invitation to Islam) be directed to men, and women's da'wah to women, to prevent fitna.