followers of Ali (RA) are the same who followed Umar (RA), Uthman (RA) and Abu Bakar (RA). it is only an idiotic believe that there can be any heir of prophet also. prophethood is solely Allah's work and He makes someone prophet as He wishes.
prophethood finished with Mohammad (SAWS) it self. now the best among the ummah was chosen khalifaa with consensus. there was not even a single conflict among the khalifaas. only some idiots who believe in racial and hereditary religion (what we call brahmanwaad) believe and try to impose their ideas on others.
khalifaa is always the one who deserves and is the best among all availables. even Umar (RA) did not allow his son to become khalifa after him, as he said: one person from my family is sufficient to become responsible before Allah almighty...
khilafaat was a responsibility before these great personalities be it Umar, Ali, Abu Bakar or Uthma (may Allah be pleased with all of them). only some idiots like Vikas who lack strength of thinkings thinks it is an authority and beleives the hereditary prophethood. how funny.