Are all sins the same? This is debatable. Some sin can be addressed and not hold long term consequences, while other sin can hold life long consequences. Some sin involves other innocent people and carries long-term consequences for them as well.
I don't correct my children the same every time they sin or disobey. Some situations require as little as a verbal correction, while other offenses need much more than just a verbal correction. Teasing a sibling isn't the same as hitting a sibling.
Taking the car without permission isn't the same as sexually violating a child. Nor is the sin of pride the same as sexually violating a child. Nor is the sin of adultery the same as sexually molesting a child. I could go on and on. Is it all sin? Yes!
We should not try to divorce ourselves from judgment. We can exercise good judgment without being judgmental. When did we as Christians start believing that holding people accountable equals sitting in judgment over someone.
NOTHING excuses preying on vulnerable families and molesting their children. There's a difference between being sinful, which we all are, and being a predator.