When what's the big deal here?
Everyone in humanity has ALWAYS been saved the same way.
There is no such thing as a "corporate salvation", or "nation saving" in the spiritual sense.
Yes, Jesus WILL deliver (save) the nation of Israel from annihilation when He returns at the Second Advent. But that's not soul salvation.
Where do you get the idea that ALL OT saints remain in "Paradise" for Jesus' Second Advent?
Jesus emptied Paradise, or Abraham's Bosom when He physically went there and "preached to the spirits".
1 Pet 3:19 - After being made alive, he went and made proclamation to the imprisoned spirits—
1 Peter 4:6 - For this is the reason the gospel was preached even to those who are now dead, so that they might be judged according to human standards in regard to the body, but live according to God in regard to the spirit.
You already agreed with my Yom Kippur point earlier right? Every year, 2 animals are sacrificed by the High priest for the sins of the nation. As a result, the entire year of sins from Israel is covered.
Why are you rejecting the corporate forgiveness of sins now?
As for your point about emptying Paradise, that is commonly believed but it is not scriptural. None of the OT saints are in heaven now, as Peter stated clearly in Acts 2 after the cross.
34
For David is not ascended into the heavens: but he saith himself, The Lord said unto my Lord, Sit thou on my right hand,
35 Until I make thy foes thy footstool.
Furthermore, All the OT saints are waiting for their resurrection at Jesus 2nd coming, as Daniel explained in Daniel 12
And at that time shall Michael stand up, the great prince which standeth for the children of thy people: and there shall be a time of trouble, such as never was since there was a nation even to that same time: and at that time thy people shall be delivered, every one that shall be found written in the book.
2
And many of them that sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt.
3 And they that be wise shall shine as the brightness of the firmament; and they that turn many to righteousness as the stars for ever and ever.