Advocacy - Social Security Bill of Rights

While I agree with the Social Security Bill of Rights (no cuts, no privatization, no etc), it's just no no no. Why isn't there something about improvements and reforms to social security - e.g. raising the income caps on social security taxes - I've read that this alone could fully fund social security. Just saying no and what we want in benefits, without talking about what's wrong and needs improvement, will not garner any additional support that we don't already have or gain partnership with other special interest initiatives with the complimentary solutions. I think we actually have lost some influence on issues related to Social Security. The opponents to Social Security have been playing the long game and it seems to be coming to fruition - by delaying, waiting for (or causing) the national debt to drown social security, framing the discussion as entitlement, all leading to the de-fanging the 'third rail' of politics.