who now restrains will do so until HE is taken out of the way.
The PERSON who is restraining evil, not just what, but whom. See also vs 6.
https://www.blueletterbible.org/nkjv/2th/2/7/t_conc_1118006
Who but God alone can restrain worldwide evil by himself?
Was not the Holy Spirit absent as a continual presence on earth while Christ was on earth?
And when Christ comes back, the restrainer will have been taken away, just as Chist was taken up to heaven, prior to the Holy Spirit coming to earth.
“If you love Me, keep My commandments. And I will pray the Father, and He will give you another Helper, that He may abide with you forever— the Spirit of truth, whom the world cannot receive, because it neither sees Him nor knows Him; but you know Him, for He dwells with you and will be in you. I will not leave you orphans; I will come to you. ...
But the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all things that I said to you. ...
But when the Helper comes, whom I shall send to you from the Father, the Spirit of truth who proceeds from the Father, He will testify of Me. ...
Nevertheless I tell you the truth. It is to your advantage that I go away; for if I do not go away, the Helper will not come to you; but if I depart, I will send Him to you. And when He has come, He will convict the world of sin, and of righteousness, and of judgment: of sin, because they do not believe in Me; of righteousness, because I go to My Father and you see Me no more; of judgment, because the ruler of this world is judged."
IF you ask anything in My name, I will do it.
If YOU ask anything in My name, I will do it.
If you ASK anything in My name, I will do it.
If you ask ANYTHING in My name, I will do it.
If you ask anything in MY name, I will do it.
If you ask anything in My name, I WILL do it.
If you ask anything in My name, I will DO it.
If you ask anything in My name, I will do IT.