The simple truth is not a non sequitur, no matter how inconvenient.
You are still refusing to answer the question. You asked why we can't raise taxes. The corollary to the proposition is the question "why can't we lower taxes and government spending?"
You obviously don't want to answer the question.
"You asked why we can't raise taxes."
No, I didn't.
Taxes are merely the consequence of services. Just like privately produced products have a cost.
Private companies price by market forces and charge whatever the market bears despite the cost.
Government supplied services are priced at cost.
We should always ask what services have lost their value and what new needs for additional services have arisen.
And tax accordingly.