Those who oppose social security system are identical twins of those who oppose Roe Vs Wade. They are convinced that they will not need the system.
Men with massive noodles don't need abortion, and even if a blood relative or a dearly loved one needed an abortion, they could arrange for one where it is legal fairly easily and without a fuss. Well if they could or they couldn't, then they might think about it a little bit, and the loved might die, but, you know, life goes on. No skin off their back when they rabidly harass people and fear monger to get opinion on their side. It serves the very deep purpose of keeping them in power and their own gravy train going. It is in fact the opposite of saving the life of a child, they are using the unborn baby to earn their own lively-hood.
The Social Security safety net is exactly the same to perhaps the same or similar group of people. There is a system that they are part of that, in their opinion, cannot be changed. Their sources of income is often the government itself. They are not employees of the government, but contractors. Defense is not the only kind of contract the government hands out. And those that have the direct line to your tax money through a job are making a killing, so there is absolutely no need for a safety net. Additionally, these people may have holdings, real or otherwise(the stock market) or a direct line into the government's printing of fiat through the banking system. The wars that are fought are done so to guarantee this system on going at home for the people involved. They have never come close to experiencing the need for a safety net.
They are convinced that they will never need the benefit. So it is in their interest to keep the system in place going as it is, including the war machine, not because of some strange political ideology, but as a direct impact on their lively-hood.
The system has no transparency or accountability. If what I have just said can be shown and those benefiting from the current system demonstrated to be the ones against social security by the media to enough thinking people, we might change something.
Until then, these resources will be continually organized to undermine things that construct a stable society.