It wasnt a victimless crime amost allies. The Israelis traded our secrets to the Russians for release of Soviet Jews.
Not only did Israel give the technical information, that Pollard supplied, to the Soviet Union (so Jews could leave there) the Soviet really wanted the technical information.
To repair the damage that Pollard did to the US required hundred of millions of dollars and hundred of thousands of technical man hours (assuming that the damage could be repaired).
That man should remain in prison until he meets his maker and receives his final sentence for violating the trust that was placed in him by all of us.