We can stop the social security money problem.

[mr_lebowski]

3. I believe the idea is that since there's a cap on what Social Security pays out when you retire

there should also be a cap on how much of your income is taxed to pay for it.

It's not an unreasonable argument, and I believe the concept was baked into the program from the very start. There's no chance the system will ever 'tax every dollar earned' as you suggest.

That said, it's not unreasonable to raise the cap in order to make sure the program is self-sustaining, indefinitely.