I don't wish to get into a manuscript fight, but the "older" argument is subjective. All we know is that the actual manuscripts Vaticanus and Sinaiticus are, themselves, older than the actual manuscripts used for the TR. We do not, however, know which stream is older. I have my opinion, you are yours, but to sit there and act like you definantly know which is older is just plain wrong. For one thing, the two you prefer were put on better materials, and for another they weren't used for a long period of time. Is it any wonder they survived longer than those put on cheaper products and used until they fall apart? Again, this argument is subjective so I don't wish to get too far into it, but we must at least admit that it is subjective.
Now, you said those that are firmly established have no need to repent. This is so wrong I can't believe you stated it. Even those firmly established need to repent. I still sin, and I need to repent from that sin. You need to as well. We all do. Now, there are yet children of God to be born of God, and Jesus has not come back yet because these have not been quickened and repented yet. Hence, He is longsuffering to those people, not the lost, hellbound scoffers described elsewhere by Peter in this chapter as "wicked".
Now, you said those that are firmly established have no need to repent. This is so wrong I can't believe you stated it. Even those firmly established need to repent. I still sin, and I need to repent from that sin. You need to as well. We all do. Now, there are yet children of God to be born of God, and Jesus has not come back yet because these have not been quickened and repented yet. Hence, He is longsuffering to those people, not the lost, hellbound scoffers described elsewhere by Peter in this chapter as "wicked".