The only reason you're "entitled" to that is because the GOVERNMENT deems it so. Its not a "right", its a government handout.
You talk about "free" to spend your money. Seems in reality you want people to be free to spend their money, but you want them to get a bonus from the government for spending that money how the government wants.
Why should you get a bonus for spending money in a different fashion than I? What makes your spending better? What makes your spending more worthy of being tax free?
And frankly, again, how about we get back on topic. For example, if your issue is that no deductions plus a 28% tax on those making $100,000 is bad then that's not so much an issue with the tax suggestion as it is with what someone may try to make the baseline.
The baseline begins at 1 and would need legislation passed to set it. Thus the vote at the top to see what baseline people would perhaps think is right.