easyread
If the protagonist is seriously sure that people will love him and his sister and children solely because he marries Margaery ... He is a fool. Through the love of the people, she will in every possible way set off Daenerys and protagonist her children from the protagonist. Dany will dream of tearing out her eyes and burning her alive, and she will be right, because Margaery wants to be the only queen. P.S The Tyrells will get nothing from the protagonist's marriage to Margaery. After all, even her child from the protagonist on the heir (son of Daenerys) cannot be married. Therefore, the most logical solution for the Tyrells is to poison Dany. She is a problem for them.