I'll use the food stamps argument: All I see is millions and regardless of how insignificant that number is with regard to how many the program has helped, I'm going to argue the whole program should be shut down because my party says so and uphill bootstraps.
If it's 200M of fraud that's less than a percent. I don't think you can safely say less than 1% of Americans have had their identities stolen so they've done a hell of a job if you ask me.