On this topic, we have the very words of God himself to look at:
Jesus answered, You could have no power at all against Me unless it had been given you from above. Therefore the one who delivered Me to you has the greater sin. -- John 19:11, NKJV
You say all sins are the same. Jesus says they aren't. I think I'll go with Jesus on this one.
Nevertheless, ALL sin leads to death.
Lesser sins are not less damning.
Rome teaches:
You can't get Jesus to pay attention to your prayers unless you go thru His mother.