Is it better to complete the call to the Quran and Sunnah in an area where innovations (bidʻah) are widespread, such as holding gatherings and dedicating the reward of reciting the Quran to the deceased, with the fear of being removed from one's position if one refuses, or to leave this area to preserve one's faith, taking into account the absence of other callers to the truth?

It is not permissible for a Muslim to attend places of iniquity unless there is a legitimate purpose, such as denouncing those involved. Gathering to recite the Quran and dedicating its reward to the deceased is an innovation (bid'ah). However, if there is no one to teach people the correct religion, and there is no escape from attending these gatherings while detesting them in one's heart, then there is no harm in attending, provided one works to explain the truth with wisdom and gradualness. Sheikh al-Islam Ibn Taymiyyah emphasized that if a Muslim can reduce evil or fill a void that a transgressor or innovator might occupy, then undoubtedly that is better. It is advised to focus on the youth and invite them to goodness, for gentleness is the key to all good, and the outcome of patience is triumph.