While I agree with your second premise, God hates all sin with equal measure. Christ didn't go to the Cross to save us from just the worst sins. He died to save us from all of them.
Indeed the only sin that can’t be pardoned in eternity (this doesn’t have bearing upon Caesar’s procedures on this mortal coil) is the sin of refusing to accept God’s offer of pardon in Jesus Christ. The Holy Spirit serves as the instrument of extending that offer, so that unpardonable sin is sometimes referred to as the “blasphemy of the Holy Spirit.” It is a unique sin.