I really don't know if you are a troll YumYum, but I'm going to assume that you are really trying to understand the gospel. So I am going to try to answer your questions earnestly.
Okay. Is there a Scripture to support the theory that faith in Christ's blood alone is necessary for salvation? Well, that is like asking if there is a verse that says God exists. Um, yeah...there are verses that say this. In fact, it would be hard to read a page in the Bible that doesn't point to the necessity of Christ's atoning blood in salvation, Old and New Testament. But here is one if you really need one:
Yes He did. Many times. Here is one:
The person who has become aware of their sins and aware that it is Christ's blood alone that can save Him from a just God IS the person who has been chosen.
Faith only occurs in the person whom God chooses and enables to believe.
You didn't mention just His blood. You said: "Salvation is when you become aware of how wretched, evil, and dead in sins you really are...and believe that it is Christ's blood alone that is able to justify you before a holy and just God who will by no means clear the guilty."
You said we have to recognize that we are "wretched and evil". I asked you a serious question: What scriptures support your position. I'm not saying that there isn't one; I sincerely want to know. So, no, I'm not a "troll", whatever that is supposed to mean. If talking about God means insulting people and calling them names, I must ask: just who is this God you profess to serve?
I don't have to think of myself as "evil" to have God's favor. That is not what the gospels teach. What I am not supposed to do is elevate myself to think of myself as being better than anyone else. But this teaching that everyone is vile and evil is not what Jesus taught. Some churches teach that to keep their dummies in submission.
The scriptures teach that God is looking for honest-hearted ones. He is right now searching the world over, examining not only people's hearts, but "their kidneys". (Jer 11:20)
When you private messaged me to tell me how messed up I am in my beliefs, I asked you if you knew what it is that God is looking for when He chooses someone? You never replied, so I will tell you. He is choosing those who have no "deception in their hearts". That is why God chose Nathanael to be one of Jesus' apostles. Nathanael wasn't "aware of his sinful nature", and yet God chose him before he knew anything:
Jesus saw Nathanael coming to Him, and said of him, "Behold, an Israelite indeed, in whom there is no deceit!"
John 1:47 (NASB)
The NIV translates it:
When Jesus saw Nathanael approaching, he said of him, "Here is a true Israelite, in whom there is nothing false."
So, while those that God chooses are sinners, they have no deceit in their hearts. That means that they sin because they are "weak", not because they are "evil" and "wicked". "Evil" and "wicked" people will be destroyed, Jesus makes that clear. When those with no "deceit in their hearts" learn about Jesus and recognize that they are sinners, they turn away from their sinful lifestyles and follow Him. They are not in denial of what they have done in the past, nor of the fact that they need Him in their life, but they accept that they are a sinner and are willing to surrender and be "born again".
But again, unless God chooses them, they can roll on the floor and shake, play with snakes, talk in tongues and do other great works in Jesus name, they are nothing but "evildoers" according to Jesus. That is because they have deceitful hearts.
Jesus was emphatic that only a "few" will receive everlasting life. Do you know what "few" means?
In contrast, He said that the road that leads to destruction was "broad and spacious", and "many" were going to be destroyed. (Matthew 7)
The bottom line: To gain salvation you have to be chosen by God, and to be chosen you have to have no deceit in your heart, even though you are a sinner.