Ryans plan will not hurt anyone 55 and over. Captain Zero's plan will hurt everyone because he is taking money out of Medicare to pay for obamacare. You have to think about it here. With the way medicare is fledgling, it won't be around when I reach 55 years old. So it is better to help the people are eligible for it now, then find a way to keep it sustainable for people who won't be eligible for another 20 years.
Medicare is just another socialist program that is dieing because they are running out of other peoples money.