If they had the cojones they could solve this issue without cutting benefits to real people. Every election cycle someone gives it lip service in the form of "cutting-waste-fraud-and-abuse" but no one ever does it.
People who work/worked and pay/paid into the system tend to be Republicans, and therefore don't really count. People like millenials who live at home, don't work, collect disability for things like PTSD due to being insulted on Facebook are the voters today's politicians want to target and please.
Once SS is bankrupt, they will have to start doing things like starting a Federal Housing Tax (Federal level property tax), Personal Property Tax (Federal) for the "wealthy" (people with assets over $12K), and so on.
Both the Dems and the GOP are going after the same voters... the people who think work is an outdated and obsolete "tradition" and would prefer that the government tend to all their needs so they can pursue other interests (art, music, computer games, etc.).