WHY DO CHRISTIENS CALL THEMSELVES "SON OF GOD", WHILE THEY ARE GLARINGLY "SLAVE OF CHRIST

No Insultive comment pls....
If the educated Christians thinks with perfect sense I believe they will reject Christianity.
Christians take Christianity as joke
because everything about Christianity is a Joke.
For example:
1: God became a man
2: God created Adam without Father and
Mother but created himself with a Mother
3: God was in the Womb for 9 month and came
out of woman private part
4: God was circumcised
5: God was killed by human being he created
6: God became accursed just to forgive Sins
7: God sacrifice his own blood to himself
8: God had a Son which the Son is the same
God while God is Father and Son of himself
9: God was buried for 3 days and raised by
another God
10: God was lost for 3 days at age of 12 aaahaaa,
All this is Nonsense and a big JOKE. No person
with common sense would believe this
Nonsense. Christianity is a Joke and I don't
really blame Christians that take it as JOKE
because they never found in the BIBLE where
Jesus said I brought Christianity or where Jesus
called his followers Christians and they cannot
even find the Word Bible inside the Bible itself.
Christianity is a Joke.
"Truth (ISLAM) has come and falsehood has
vanished, Surely falsehood is ever bound to
vanish" (Alqur'an 17:81)
WE ARE ALL SLAVES OF GOD NOBODY IS SON,
ROMAN 6:20-22
"20For when you were slaves of sin, you were free in regard to righteousness.
21 Therefore what benefit were you then deriving from the things of which you are now ashamed? For the outcome of those things is death.
22 But now having been freed from sin and enslaved to God, you derive your benefit, resulting in sanctification, and the outcome, eternal life.
.
.WHY DO CHRISTIENS CALL THEMSELVES "SON OF GOD",
WHILE THEY ARE GLARINGLY "SLAVE OF CHRIST"????
.
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◄1 Corinthians 7:22 ►
Parallel Verses
New International Version
"For the one who was a slave when called to faith in the Lord is the Lord's freed person; similarly, the one who was free when called is Christ's slave.