This graph is what fraction of your income you actually pay in income taxes (assuming you are single, take the standard deductions and live in California). No “brackets”, no fancy accounting tricks, just the mach zehnder modulator actual дивани percentage: if you have $100K in income, you will pay around 35% of it, or $35,000, in income tax (federal, state and FICA).

This amount of your taxes is extremely low. No wonder you cannot afford proper healthcare and education and social security.
This graph would be much better if it the y-axis maximum was 1.0
Its the x axis that needs fixing.