You did not even answer the simple question: can Jesus clean a person's mind/ spirit better than a man can ?
No matter - what is impossible for man, is easy for God. (man is unable to do what is needed).
No matter - what if a man gets a clean mind/ a clean spirit ?
Then what ?
Matthew 12:28 King James Version (KJV)
28 But if I cast out devils by the Spirit of God, then the kingdom of God is come unto you.
King James Version (KJV)
Public Domain
43 “When an impure spirit comes out of a person, it goes through arid places seeking rest and does not find it. 44 Then it says, ‘I will return to the house I left.’ When it arrives,
it finds the house unoccupied,
swept clean
and put in order. 45 Then it goes and takes with it seven other spirits more wicked than itself, and they go in and live there. And
the final condition of that person is worse than the first.
That is how it will be with this wicked generation.”