Well, that's Groking interesting...

I asked Grok this question:

"What percentage of their income does a Pennsylvania family making $50,000 pay in all various government taxes and fees? Include fuel taxes, direct taxes, indirect taxes, and license fees."

It returned a very long and detailed answer, summed up by:

"Final Answer:  A Pennsylvania family of four earning $50,000 annually pays approximately 21.7% of their income in combined federal and state income taxes, payroll taxes, sales taxes, property taxes, fuel taxes, indirect taxes, and license fees, assuming they live in a typical locality, own a $150,000 home, and have moderate consumption patterns."

So a lower middle class family of four in Pennsylvania pays roughly 1/5th of all their income to the government.  This assumes two working adults and two school age children, living in a small home with a mortgage.

Make that income $76,000, the median family income, and the number becomes 27%.

$32,000 (Considered poverty level), 16% of all their income goes to the government.