Anyways, if Jesus was not resurrected would the sins of the world still be forgiven?
I’m uncomfortable with the wording of the question. Either way, the sins of the world would not have been “forgiven.”
The whole world was *redeemed *by the Sacrifice of Jesus on Calvary (irregardless of the subsequent Resurrection). Redemption is not the same thing as forgiveness. Redemption makes forgiveness possible, but does not invoke it automatically. (The terms “forgiveness” and “redemption” (and “salvation”) are sometimes loosely used interchangeably, so I am speaking in precise terms here.)
All of humanity was *redeemed *by the Cross, but not all sins were *forgiven *(then or now).
Consider, for example, the two criminals who were crucified along with Our Lord. One mocked Jesus, and the other showed him respect. Jesus told the second man that he would be saved. Jesus died before either of the other men, but the other two died not long afterward (John 19:32-33). After Jesus had died, these other two criminals had little opportunity to sin, as both were also hanging on a cross.
If all sins were forgiven at the moment that Jesus died then both criminals would enjoy the same fate (ie, heaven). Thus, it would not matter that one reviled Jesus and the other honored him (both would share the same favorable fate), and it would not have mattered what Jesus assured the second criminal.
However, even though the first criminal (the one who mocked Jesus) was redeemed by Jesus’ death, he (presumably) had no repentance, and no forgiveness. His ultimate fate is not specified, but it looks pretty bad for that guy (though only God knows for sure).
At any rate, I think that very few Catholics associate the Crucifix with the chronology of salvation. It is a reminder of God’s love for humanity.