Minato is a Jin. Get over it. The reaper death seal binds whatever the user specifies to the body of the user, which the demon then takes both the object sealed inside the user along with the user's life. In Minato's case, the kyuubi chakra was sealed in him, but then his own life was sealed and taken by the demon, which is the reason a marking can be seen on the user's body before the demon takes their lives. That's why it's called a reaper death SEAL. If nothing were being sealed into the user, there would be no need for a marking on the user's body BEFORE HE DIES.
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That right there is the point at which Minato became a Jin. Kurama's yin was sealed inside of him, not the demon. Minato can even feel how heavy the chakra is, thus confirming the chakra is actually sealed inside of him, not the demon. Heck you even see the chakra stolen from the fox going into Minato, not the demon. Reaper death seal is basically 8-trigram except you die afterwards. If Minato had remained alive and been able to tame Kurama, he would be able to do everything he can do as an Edo with him. Remember time still runs even in the reaper death seal. You and what is sealed inside of you are said to be fighting each other for as long as you are within the demon's belly. So Minato and Kurama's yin chakra were battling one another for 16 years. That's PLENTY of time for Minato to tame and gain the respect and help of Kurama. It's the same process that Naruto went through. He had to battle Kurama's yang to get KCM. And then eventually gain Kurama's respect and trust to get BM. So how any of you see it as impossible for Minato to have done the same thing is beyond me
In the case of Hiruzen and Oro's Arm: Oro RELEASED his arms, Tobirama, and Hashirama. That is the reason why Hiruzen wasn't revived with their chakra still inside of him. Oro didn't release Kurama's yin chakra when he revived Minato, so Minato retained the chakra and remained it's Jin. It's really not that hard to understand.
In the case of Obito and the Edo Jins: The purpose of Obito's plan is to have the tailed beast chakra's sealed to the GEDO. Remember? Gedo? Shell of the juubi? Which needs the tailed beasts sealed inside of it to be revived? Why would he go through the effort of sealing the chakra back into dead bodies when they are already in the proper vessel and he can easily bind them temporarily with chakra rods and it serve the same purpose? Do you not remember how much the akatsuki kept complaining about how long it took to seal those things in the Gedo the first time? Why would he want to go through with that again? And on top of that, the members which helped him seal all that chakra are all dead.......
Aside from this, Minato was already shown doing a combo TBB attack with Naruto. And he mastered Rasengan which is based off the TBB. I really don't know what manga any of you are reading that suggests he can't be a jin, he can't use TBB or he can't do this stuff alive. But everything clearly shows that he can if you are just willing to pay attention
