Actually, I think Strav summed it up nicely. Peter, suggesting that those who don't obey God's word (such as you - Menno - suggested in another thread may apply to Strav), will "meet the fate that was planned (predestined?) for them" (e.g. "Heretic Toast"). Does that sum up Peter's view? Or do you have a different take?
Disclaimer - My use of the word 'predestined' does not imply an endorsement on my part of a Calvinist view of predestination, but was offered here to clarify the OP's take on the passage.
What does the text say?
1) "He is the stone that makes people stumble."
Who is "He"? The answer is shown in the preceding verse. Jesus is the cornerstone.
2) "He is the rock (Jesus told Peter, when Peter was given his name, that Jesus was THE ROCK, but Peter was a little rock Jesus would use to build His church.) that makes them fall."
Who is "them?"Verse 7 tells us. The ones who reject Jesus are the ones which Jesus makes them fall.
3) "They stumble (not fall) because they do not obey God’s word."
Notice there is no comment about denominational tradition. They may obey tradition, but they don't obey what God says.
4) "They meet the fate that was planned for them."
Jesus makes them stumble. Jesus makes them fall. Because they do not obey God.
Thus..."they meet the fate that was planned for them."
Question: Was the fate planned before they stumbled and fell due to obedience?
Question: Can a human being be responsible for not obeying God's word if God causes them to stumble and fall and thus meet their fate?
1 Peter 2:8-9
[8]And, “He is the stone that makes people stumble, the rock that makes them fall.”They stumble because they do not obey God’s word, and so they meet the fate that was planned for them.
[9]But you are not like that, for you are a chosen people. You are royal priests, a holy nation, God’s very own possession. As a result, you can show others the goodness of God, for he called you out of the darkness into his wonderful light.
Notice the contrast in verse 9.
"But"
"You are not like that."
Who is Peter referring to? Some people want to make the "you" universal in Peter's writing, but here Peter tells us who the "you" is. He calls them "chosen people," "royal priests," "a holy nation," "God's very own possession."
"As a result"
A result of what? Answer: Being chosen.
"You can show others the goodness of God."
We can show them. We cannot prevent them from stumbling or falling and meeting their fate.
"For He called you out of the darkness into His wonderful light."
Again, the you is referring to the chosen. The chosen were in darkness, but God called the chosen into His "wonderful" light. It's not just light. It's WONDERFUL light.
This is what I observe.