Subsidies and preferential tax treatment are textbook methods of state support for enterprise.

This is acknowledged in the article with literally the first sentence.

> China’s tech champion got as much as $75 billion in tax breaks...

edit:

In any case, state support for American businesses goes way beyond preferential tax treatment.

Boeing, TBTF bank bailouts, farm subsidies and bailouts, wars to open up foreign markets, the list goes on for centuries...