Faith says we can trust in Gods forgiveness.

Lutero:

This is not true. Faith is opposed often to reason.

No. It isn't. The presupposition here is that we are talking about faith in God. 

First of all, faith is superior to "human" reason because it is relies upon the Wisdom of God.
Second, to say that "by faith we believe things we do not understand" does not mean that faith is opposed to reason. It means that unaided human reason can not 
attain the heights of Wisdom wherein God resides.
Third, if faith in God were ever opposed to reason, then faith would be a mistake. And faith is not a mistake but a virtue and a grace of God.

Reason tells us we are punished for our sins.

Reason is correct. We are punished for our sins, aren't we?
Leviticus 26:18

King James Version (KJV)
¹⁸ And if ye will not yet for all this hearken unto me, then I will punish you seven times more for your sins.


Faith says we can trust in Gods forgiveness.

So does reason. The reason I have faith in God is because I trust in God's goodness. That's reason and faith, hand in hand.

Reason says there is no value to human life.

That's madness inspired by Satan. We all hold our own lives valuable at the very least. And I know I'm human.

Faith says there is.

So does reason.

Reason says we must never give up all we have as Jesus asked.

That's not reason. That's greed.

Faith says otherwise.

Once you come to faith in God, you must discard the old man and his old reasons and adopt the Reason or Wisdom of the New Man, Jesus Christ in whom we are new born. And reason comes perfectly in line with faith. If we want to be united with Christ in the end, we must not hold on to material goods as though they were our salvation:
Philippians 3:8

King James Version (KJV)
⁸ Yea doubtless, and I count all things but loss for the excellency of the knowledge of Christ Jesus my Lord: for whom I have suffered the loss of all things, and do count them but dung, that I may win Christ,

There are many differences between reason and faith. Faith is a passion that does not depend on human reason.

Faith is not a passion. It is a grace and a virtue. It is an act of God and a work of man. It is with this work of God which we must cooperate in obedience of Christ.

The bread is no longer mere bread, it becomes the spritual Christ to us as we partake.

The Bread is no longer bread at all. It is the mere resemblance of bread. It is now the Body, Blood, Soul and Divinity of Jesus Christ.

It is determined by faith and not by reason.

That is true. But it is not opposed to reason. Once we accept the fact that Jesus is God and that He created the world with but a word, it becomes as natural to accept this doctrine as it does to accept that God is omniscient, omnipresent and omnipotent. There is no human being in the world who can understand those doctrines which say that one Being can be "He in whom we live, move and are."(Acts 17:28). Yet, it is not opposed to reason. It simply can not be attained by the unaided human mind. 

Transubstantiation is not necessary

Whether it is necessary is besides the point. Jesus says it is what He did:
John 6:51

King James Version (KJV)
⁵¹ I am the living bread which came down from heaven: if any man eat of this bread, he shall live for ever: and the bread that I will give is my flesh, which I will give for the life of the world.

and makes no sense anyway

It makes no sense to you because it is a teaching which is spiritually discerned:
1 Corinthians 2:14

King James Version (KJV)
¹⁴ But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.

1 Corinthians 11:29

King James Version (KJV)
²⁹ For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord's body.


Spiritual discernment comes with faith.

as it is dependent upon Roman/Greek physics which is out of date.

Whatever that means.

Neither does it require a priest.

Christ appointed His priesthood to confect the Eucharist when He told His Apostles to: 
Luke 22:19

King James Version (KJV)
¹⁹ And he took bread, and gave thanks, and brake it, and gave unto them, saying, This is my body which is given for you: this do in remembrance of me.

Faith is sufficient.

And believing in the Eucharist being the Body and Blood of our Lord is the test of faith. Without faith, you will not believe.

Peace, 

And to you,

Sincerely,

De Maria