It seems you can see what you believe is true. You only took into account part of what I said. Sin does separate the believer from God in the sense that they lose fellowship and communion. But it does not separate the believer from God in terms of position or sonship. This I stated earlier.No, I can perfectly see what You're claiming. Sin does not separate us from God. Yet, the Lake of Fire will be full of people in the same spiritual condition.
I am curious...Romans 8 deals with the subject of what is true of those who are in Christ and not under condemnation. Towards the end of the chapter a litany of things are mentioned that might possibly separate the believer from the love of God in Christ Jesus. What do you believe can separate us from the love of God in Christ Jesus?