In the databook both Hagoromo and Hamura have TSB :|
And as I have said Gin and Kin went about this in a different process. If I went by your logic everyone who Kurama gave chakra is now a pseudo jinchuuriki
Yes but how many? They only had one TSB just like obito did after the juubi was removed from him. Hogoromo and hamura inherited juubi chakra but they only had a little bit, where as hogoromo later on is always seen in RS form with 9 TSB. Like he had as a jinchuriki. It is obvious that the amount of juubi chakra he had increased and since he was dead for many years for him to still have that form means he is still producing that chakra.
What different process? The kyuubi as I have said is basically chakra that can think and has physical form. What they ate was chakra nothing more.
Yes all the people naruto gave chakra to still posses the kyuubi's chakra. Even when the kyuubi was removed from naruto many of them still possesed the cloak and their case is different because naruto is in control of the cloak not them meaning there is no fusion of the chakra naruto gave them to themselves. That is why their kyuubi chakra may not be rechargeable.
Naruto's RSM was given to him by the sage of six paths it is not the same as the mode madara and obito had. The chakra of the rikudo is needed far more to achieve the form than the chakra of the bijuu. Since the data book didn't even mention that bijuu chakra was needed it is likely that even if you were correct naruto can still possess the RSM since the sage of six paths(who gave him the form) has rechargeable chakra of the tailed beasts himself and may have given naruto the rechargeable ability too.