If you would do a search before posting, you will see that all of your common Protestant arguments have been answered many times here. But I’ll respond anyway:
It is written that we have one mediator between God and man that being the Lord Jesus Christ.
Also it is writen that all have sinned and fallen short that all also includes Mary.
Not quite. Look at Romans 3:23 again. Some Protestants use this verse “all have sinned” in an attempt to prove that Mary was also with sin. But "all have sinned " only means that all are subject to original sin. Mary was spared from original sin by God, not herself. The popular analogy is God let us fall in the mud puddle, and cleaned us up afterward through baptism. In Mary’s case, God did not let her enter the mud puddle.
1 Cor. 15:22 - in Adam all (“pantes”) have died, and in Christ all (“pantes”) shall live. This proves that “all” does not mean “every single one.” This is because not all have died (such as Enoch and Elijah who were taken up to heaven), and not all will go to heaven (because Jesus said so).
Rom. 5:12 - Paul says that death spread to all (“pantes”) men. Again, this proves that “all” does not mean “every single one” because death did not spread to all men (as we have seen with Enoch and Elijah).
Rom. 5:19 - here Paul says “many (not all) were made sinners.” Paul uses “polloi,” not “pantes.” Is Paul contradicting what he said in Rom. 3:23? Of course not. Paul means that all are subject to original sin, but not all reject God.
Rom. 3:10-11 - Protestants also use this verse to prove that all human beings are sinful and thus Mary must be sinful. But see Psalm 14 which is the basis of the verse.
www.scripturecatholic.com
Mary is not once refered to in the bible as mary the Mother of God this is a latter added by the catholic church.
Many Fundamentalists are horrified when they hear the Virgin Mary called the Mother of God, but they are unaware of what this doctrine means and what their own Protestant forebears said about it.
Mary isn’t the Mother of God in the sense that she is
older than God or the source of the Son’s divinity, for she is neither. But in other senses she merits the title.
If Mary is the mother of Jesus, and if Jesus is God, then Mary is the Mother of God. There is no way out of this syllogism, whose form logicians have recognized as valid since before Christ.
To avoid its conclusion, some Fundamentalists assert that Mary did not carry
God in her womb, but only Christ’s
human nature. This reinvents a fifth-century heresy known as Nestorianism. Mothers do not carry merely human
natures in their wombs: They carry
persons, which is why abortion is a form of homicide. (Only persons have a right to life; natures do not.) Women do not give birth to human natures, but to persons.
The Nestorian claim that Mary did not give birth to the unified Person of Jesus Christ splits Christ’s human nature from his divine nature. It imagines two separate persons—one divine and one human—united in a loose affiliation. It is a Christological heresy of the highest caliber, as the Protestant Reformers recognized.
Martin Luther and John Calvin both taught Mary’s divine maternity.
catholic.com/thisrock/1997/9706frs.asp
God from the beginning said you shall not worship any other God.
Catholics don’t worship Mary. Please do a topic search as this has been covered in hundreds of threads.
So in praying to mary which is a from of worship you sin against God.
Asking Mary to pray for us is not worshipping.
Mary did not die on a cross.
Who said she did?
Nor is she any different then any other created person with the execption of being allowed to carry Christ Jesus as a child and to be his earthly mother for a short time.
Ho, hum. Such a small, minor, insignificant sort of exception, isn’t it?