Let's breakdown your reply into a few segments if you allow me to.
1. classic Protestant understanding of the Lord's Supper is merely a symbol
I don't think you understand fully the Lord's Supper
1 Corinthians 11:24," And when he had given thanks, he brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me."
"...in remembrance of me."
1 Corinthians 11:26,"For as often as ye eat this bread, and drink this cup, ye do shew the Lord's death till he come."
"...shew the Lord's death till he come."
1 Corinthians 11:29,"For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord's body."
"....not discerning the Lord's body."
all your questions are answered in the Bible itself.
- Its not merely a symbol, its done in remembrance to show Lord's death.
- it causes different degrees of judgement, because the person show no discern of the Lord's body
2.
Since Krima is also used for those not keeping the faith, I do not see how your understanding is in harmony with Scripture.The scriptures are in harmony.
Krima is judgement.
And in most cases about sin, or in the event of not believing in Jesus, the 'Krima' is then elaborated further.
exp;
Matthew 23:33,"..damnation of hell?"
Luke 20:47,".... greater damnation."
Romans 3:8,"...whose damnation is just."
John 5:29,"...unto the resurrection of damnation."
and so on..
You cant use an ADVERB or NOUN to represents HELL.
Like you cant just say HIGH or HIGHEST to say its surely heaven ? Right?
The only thing you can say is in JUDGEMENT.. its surely because of something WRONG..
like what you can say HIGH or HIGHEST.. is some place or some thing above.
Your reply didn't answer the discrepancy of using Krima for different degrees of punishment, even that for not keeping the faith. So I'm not sure we are on the same page.
As for the Lord's body and blood not merely a symbol, you are actually in disagreement with most Protestants on this topic.
"Therefore whosoever shall eat this bread, or drink the chalice of the Lord unworthily, shall be guilty of the body and of the blood of the Lord."
Now being guilty of the body and blood of the Lord equates to the guilt of murdering the Lord.
This has a parallel in the Old Testament. See Lev 7:20.
"If any one that is defiled shall eat of the flesh of the sacrifice of peace offerings, which is offered to the Lord, he shall be cut off from his people."
Our true peace offering being the unblemished sacrificial lamb of the New Testament is Jesus who offered his body and blood. And Paul knew about this parallel in the OT since he was a staunch Pharisee persecuting Christians before his conversion. Similarly being cut off from God's people in the OT is similar to being damned (losing salvation) in the NT.