You’re not looking at the 3 verses collectively:
Acts 4:10-12:
“Then know this, you and all the people of Israel: It is by the name of Jesus Christ of Nazareth, whom you crucified but whom God raised from the dead, that this man stands before you healed.
Jesus is the stone you builders rejected, which has become the cornerstone.
Salvation is found in no one else, for there is no other name under heaven given to mankind by which we must be saved.”
You’re argument is now with God and his written word.
You are forgetting Peter is talking to the leadership so don’t take the text out of context and say it means something else. Peter does not accuse all Israel but testifies to all Israel in verse 10. Was all Israel there at the examination? No! So how can “whom ye crucified” apply to anyone not there?
Look at
Mathew 26:57And they that had laid hold on Jesus led him away to Caiaphas the high priest, where the scribes and the elders were assembled. 58 But Peter followed him afar off unto the high priest’s palace, and went in, and sat with the servants, to see the end.
Peter knows who crucified Jesus and so do the people who participated in having Christ crucified.
Acts4:6 And Annas the high priest, and Caiaphas, and John, and Alexander, and as many as were of the kindred of the high priest, were gathered together at Jerusalem. 7 And when they had set them in the midst, they asked, By what power, or by what name, have ye done this? 8 Then Peter, filled with the Holy Ghost, said unto them, Ye rulers of the people, and elders of Israel, 9 If we this day be examined of the good deed done to the impotent man, by what means he is made whole;
Do Jewish believers have to stop being Jewish?