So lets go with Tabari.
Tabari says that Ali (ra) gave his allegiance to Abu Bakr (ra) right away, did not even put on his outer garments. Tabari says he went out to give allegiance, the moment he heard that bay’at was being taken.
Tabari also says that people only paid attention to Ali (ra) while Fatima (ra) was alive. She died six months into the caliphate of Abu Bakr Siddique (ra) and Ali (ra) was isolated, people stopped caring about him. He then sent for AbuBakr and took public bay’at and praised him greatly and became part of the team.
Tabari has no explanation of the ‘opening of the door of Fatima’s house’. It is mystery. He does not explain. It could be a Shi’ite insertion. The rest are the musings of a very sensitive and introspective man. No one comes up ro his standard.
Tabari also says when Ali (ra) was asked by his followers if they should do bay’at with Hassan (ra), he was non committal. He said I don't say you should, nor do I say you shouldn’t. In other words the straight forward exercise of Shura to elect a leader. No appointment, no divine nothing. No masuum anything. This completely destroys the political theory of divinely appointed Imams claimed by Shian e Ali. That is what separates them from republican impulse of mainstream Islam.
In actuality ignorance of how reproduction works and traits are transmitted underlies this theory or belief. In the 21st century it is a travesty that on account if not understanding genetics 101 , they have killed half a million Muslims just in Syria and unknown number in Iraq, making nine million refugees. That is the result of this bizarre belief system of Imams, the last has not been heard of for 1200 years. For the Agha Khanis it is insane, grandson of of a calypso dancer, 3/4 European is their living imam. Gambling horse racing, women, fast cars, scandals. True, it seems Allah has put ls His seal on their hearts , they cannot see, hear or speak (the truth).