There is no debating that Michael Persico is NOT made. He was indicted in 2010 and 2011 as an associate and has been, after much delay, sentenced for his crimes. Until his 2010 bust he was posing as the legitimate brother, the civilian of the Persicos even though evidence shows that he is not. It’s not like his criminal career is a mystery either - Big Anthony Russo was under him for most of his criminal career and testified that yes, Michael was an associate.
That being said, he definitely had the standing of a capo or higher. When Big Anthony was a capo and tried to start a valet business, Michael stopped him and essentially took it over. When Teddy Persico was on the family’s ruling panel, he discussed wanting to whack somebody but said that he had to “talk to Michael about it.” Unless Michael was ssupposed to organise or execute the hit, which is unlikely considering his status as the white-collar “legitimate” Persico, we can assume admin member Teddy wanted to clear it by Michael or at least consult it with him. That’s indicative of Michaels status in the family and he has no reason to get made because he has enough clout as Carmine Persico’s son and definitely does not want the heat. Also, if someone wants to do some digging into his files, I think Greg Scarpa mentioned how Michael was not made but had a “special status” in the family equivalent to being made. Take that how you will.