Anybody can get born again if they can do Romans 10:9. I'm referring to the spirit which you mentioned.
Jesus explains to Nicodemus how we become Born Again.
A Born Again understands this scripture perfectly and nothing more is needed...Jesus explains it well.
...God is the initiator and God does it all...the process of him drawing us to Jesus etc,etc, and Spirit gives birth to spirit...he does it all.... we are just the vessel that God uses to bring us to his Son , then like the wind, who we can’t see or know where it comes from.or where it’s going.so it is everyone who is Born of the Spirit as he explains to Nicodemus.
John 3
King James Version
3 There was a man of the Pharisees, named Nicodemus, a ruler of the Jews:
2 The same came to Jesus by night, and said unto him, Rabbi, we know that thou art a teacher come from God: for no man can do these miracles that thou doest, except God be with him.
3 Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God.
4 Nicodemus saith unto him, How can a man be born when he is old? can he enter the second time into his mother's womb, and be born?
5 Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.
6 That which is born of the flesh is flesh; and that which is born of the Spirit is spirit.
7 Marvel not that I said unto thee, Ye must be born again.
8 The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth: so is every one that is born of the Spirit.