Do you understand what the word “dynasty” means? It isn’t “famous family”. Definitely not “famous because dad got elected to high office”.
Hey, no need to be rude. I’m using the word colloquially, not in the technical sense. Besides, in another comment I admitted maybe dynasty wasn’t the right word, at least for Obamas and Biden. It’s more appropriate (though, you’re right in that it is still not technically accurate) for people like the Clintons and Bushes.