Jesus was the Passover Lamb of God... and he was sacrificed on the cross for our sins.
However, I wouldn’t forget about Easter, in that Jesus was raised from the dead... you see...
A dead Passover Lamb of God is one thing, but a resurrected Lamb of God, is quite another... :-) ... and that happened on Easter Sunday morning...
I wouldn’t be “throwing out the baby with the bathwater” ... doncha know...
OK so I am not going to change your mind. But someday Christians are going to 'rue' the day they got into bed with the pagan origins of Easter.