Even if all of this spying activity was real (there is a 0% chance that more than 10% of it is), the American government certainly deserves to be spied upon. Hell, even the article claims

China also purged a whole cadre of officials working as U.S. spies a decade ago.

Further fueling paranoia were allegations by former U.S. intelligence contractor. Edward Snowden that the U.S. had extensively hacked Chinese infrastructure including mobile phone networks.

You spy on a country the country spies back at you. Seems fair, no?