If Romans 1:18-3:23 could be summarized it would be something like this...
“Everyone is on the Titanic — and it is sinking - HELP."
This section of Romans condemns "ALL" humans.
"...all have sinned and fall short of the glory of God." (Romans 3:23)
Romans Chapter 6 tells us what happens to sinners - death.
"For the wages of sin is death..." (Romans 6:23)
Romans Chapter 5 tells humanity why and how God intends to save ALL of them - a truth that mainstream Christianity flatly refuses to believe.
"You see, at just the right time, when we were still powerless, Christ died for the ungodly...God demonstrates His own love for us in this: While we were still sinners, Christ died for us. Since we have now been justified by His blood, how much more shall we be saved from God’s wrath through Him! For if, while we were God’s enemies, we were reconciled to Him through the death of His Son, how much more, having been reconciled, shall we be saved through His life!...just as one trespass resulted in condemnation for all humanity, so also one righteous act resulted in justification and life for all humanity. For just as through the disobedience of the one human the many were made sinners, so also through the obedience of the one human the many will be made righteous...where sin increased, grace increased all the more, so that, just as sin reigned in death, so also grace might reign through righteousness to bring eternal life through Jesus Christ our Lord." (Romans 5:6-21)
Again, we are all on the Titanic - waiting for our deliverer Jesus, the Savior!