What is the ruling on supplicating collectively after each of the two sermons of the Friday prayer, by saying "Ameen" to the preacher's supplication, if approximately half of the supplication is about the royal family, and what should I do if that contradicts the teachings of Islam?

If the Imam's supplication for the ruler on the minbar (pulpit) occurs at the end of the khutbah (sermon) and before he descends, then the supplication is legislated, and it is recommended for the congregants to say "Ameen" to it silently. However, if it occurs after the Imam has descended, then it is an innovated matter, and one should not participate in it with supplication or by saying "Ameen." Scholars have differed regarding the ruling on supplicating for the ruler on the minbar: some consider it an innovation, while others see no harm in it. Some have elaborated, stating that it is originally an innovation, but given its prevalence, and because refraining from it might lead to misunderstanding from the rulers, it becomes recommended or even obligatory to do it. Some have generally recommended supplicating for him, as long as it does not involve exaggeration or something objectionable. Thus, the prevailing custom in the questioner's country determines whether one should say "Ameen" to the preacher's supplication for the ruler, provided he does not utter anything objectionable.