Good day and good wishes Infinityloop.
Hopefully you won't mind someone else joining your discussion, if you're genuinely interested in answers to your questions.
Please see more below, in specific reply to your questions.
If original sin is true, then why create the universe if a relationship is all God is interested in?
The universe was created as our playground by Father (our Creator - God). It's our home.
The "original sin" actually wasn't in the Garden of Eden; it was before then, and was what got all of us sent here (to Earth). That "original sin" was doubting that Father is just and fair in all things, which made it possible for Lucifer/Satan/Iblis, aka the devil, red-dragon and the serpent, etc. to deceive one third of the angels of heaven (
Rev. 12:3-4) into fighting with him in a coup attempt (
Isa. 14:12-17) against Father.
Revelation 12:7-9
12:7 And there
WAS war in heaven: Michael and his angels foughtagainst the dragon (Lucifer); and the dragon fought and hisangels,
12:8 And prevailed not; neither was their place found any more inheaven.
12:9 And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out to the earth, and his angels (you -
Luke 9:55) were cast out with him (
Matthew 25:41).
Unfortunately, after being defeated and banished here to Earth, to this prison-reform school for the criminally insane, the "original sin" was repeated when Eve listened to the serpent (Lucifer/Satan), and ate from the tree of the knowledge of good
AND evil (thereby becoming confused between the two) and then convinced Adam to do the same.
All Father has ever wanted is for us to come to our senses, stop listening to Satan, and start doing unto others as we would like them to do unto us. Love thy neighbor. The golden rule. The Second Great Commandment (see
Mark 12:29-31).
What makes Jesus "more-God" than Adam?
Christ, the
immortal spirit-Being, is the Son of God.
Jesus is the mortal human born of the virgin body of Mary, thus making him the Son of Man.
Jesus+Christ = the human+Being that is referred to in Scriptures.
While Christ was here on Earth incarnating the body of Jesus (
John 1:14), He
NEVER claimed to be God nor did He ever claim to be God's equal. Only that He is the Son of God, just as Adam is.
The distinction between Adam and Christ is that Adam was a convicted felon, guilty of treason, who agreed to be rehabilitated here on Earth to stay his execution. Christ, Who is Father's Eldest/Firstborn Son, is
NOT a prisoner here, but instead came down here voluntarily (on multiple occasions actually) to help show us
The Way home, to heaven. So where Adam represents the fall from Father's Grace and mortality (death), Christ is a reversal of that fall, leading us back to our true, divine spiritual nature and immortality (Life), i.e. understanding who and what we really are, and what we all should be doing with every moment of the lives we've been
given.
If creating the universe was just about a relationship with God, then what is the purpose of religion?
After 6000 years, the purpose of organized religion should be clear: it's a very lucrative business designed to keep people
AWAY from Father (God). Do people really think that God needs money? Or that He wants his
alleged messengers to live in the lap of luxury while everyone else is impoverished and enslaved? Ridiculous! And that's before considering all of the p***phile priests, pastors, rabbis, imams, etc.
All Father has ever wanted is for us to get to know Him, so we can stop being so stupid and selfish, earn a pardon from this prison reform-school, and go home.
What is the purpose of history?
To teach us right from wrong (in Father's Eyes,
NOT our own -
Deut. 12:8) so that we can relearn the "universal principles" found in His Law/Commandments (the first five books of the Bible, namely:
Genesis,
Exodus,
Leviticus,
Numbers and
Deuteronomy).
History is also to provide us rock-solid proof of Father's Master Plan, as well as the evidence of His Hand in all of the prophecies, over 99% of which have already been fulfilled in exact and minute detail.
If heaven/hell exists, yet God incarnated into a man, then what is the purpose of the Universe?
THIS IS HELL (aka planet Earth), and we've all been here for roughly 6000 years, doing the same things over and over and expecting them to turn out differently. Isn't that how Einstein defined insanity?
God did
NOT incarnate into a man, as Father made it crystal clear He would
NEVER do that for what are hopefully obvious reasons.
Numbers 23:19
God [is] NOT a man, that He should lie;
neither the son of man, that He should repent: hath He said, and shall He not do [it]? or hath He spoken, and shall He not make it good?
Father (God) is
OMNIPOTENT and thus not able to limit Himself to anything less, which is why He
SENT His Messengers (the Prophets), and finally His Firstborn
SON to deliver His Message to mankind.
And what was, and still is, the purpose of Father's Message? Love one another by
KEEPING THE LAW/COMMANDMENTS, which were given to us to protect us from all of the evil in this world and to set and keep us
FREE. Those who genuinely repent of their sins (stop breaking The Law -
1 John 3:4) will
LIVE and be allowed to help remake this world into the heaven on earth it was always meant to be. Those who refuse, won't.