That’s exactly the problem — you think taxes are some magic piggy bank that “gives back” later. No, taxes are forcibly taken from others under threat. Libertarianism isn’t about hating the elderly — it’s about rejecting a system where one group is entitled to live off another by law.
If someone paid into a retirement system voluntarily, I support that. But when you force others to subsidize people who didn’t plan ahead, you’re no longer helping — you’re stealing.
Honestly, from what you wrote, it’s clear you don’t even know what you’re defending. You’re just talking to talk.