Why do fans keep acting like Rhaenyra and Cersei are in the same situation ?
Cersei's children aren't Robert's, the ruling monarch
Rhaenyra's children aren't Laenor's, the consort
Rhaenyra is the legitimate heir and Jace, Luke and Joffrey are her biological kids
Robert didn't know about Joffrey, Myrcella and Tommen
Laenor actively knew that Rhaenyra had chosen Harwin as the biological father of their children and agreed
Corlys and Rhaenys knew and loved the Velaryon boys and acknowledged them as their grandsons