How can a young man guide his Druze parents to Islam, and what is the way to hasten the fulfillment of his prayer for their guidance?

Guidance is in the hands of Allah alone. The servant must exert their utmost effort in advising and supplicating with wisdom and patience, while being benevolent towards the one being invited [to Islam], and persistently supplicating for them in their absence, avoiding despair or rushing the results. It is advisable to strive in honoring one's parents and paternal aunt, to continuously advise gently and kindly, to choose appropriate times and methods, and to seek help from righteous callers [to Islam] and modern means. If the family does not embrace Islam, then one should entrust the matter to Allah and take comfort in the example of the Prophets whose families did not respond to their call.