The Dany haters can't really have it their way. Either Jon is not Rheagar's son and has no claim to Westeros. Or he is Rhaegar's son and just as likely to go insane as any Targaryen. I say Jon has a higher chance of going batshit crazy because of his short temper, wolf bond, and having Lyanna's wolf blood. The bond with the direwolf make Jon's sanity even more fragile.