General Discussion

In order to exist as a person, you rent a house, eat food, buy a car, pay for auto and home insurance, and much more. You buy airplane tickets to travel. After you pay for all that stuff, you have $10,000 of your $100,000 income left over.
None of that is deductible. There’s a 100 of you x $100,000 per year income. You are each taxed on most of that $100,000, and collectively on most of $10 million.

As a company, you might rent a building, buy fuel and materials, pay for cars, insurance and much more. You deduct it all from your $10 million of gross revenue. Maybe you have $3 million left over on which you might have to pay taxes. So you buy a private jet for $3 million. You get ‘bonus depreciation’ all in one year. Presto, there are no taxes.