The US is worried as the Chinese government has interests in these firms. With the US increasing its influence in the area through bases in Central Asia, wanting to build more in Australia and military exercises with Japan, tensions between the two global leaders will continue to increase.
Here's an excerpt from the piece titled "The U.S. Must Be Subjected to Retaliation for Creating Trouble for Chinese Companies” via ChinaScope:
"The Huanqiu editorial asserted, “China needs to be serious about protecting its own enterprises. It should have the courage and the willingness to use state power to retaliate against those countries that make trouble for China's enterprises.
China must take action to let the United States and Europe understand that, if Chinese enterprises encounter trouble in their countries, their companies in China will then become scapegoats. Now is the time for China to show its determination to the United States and Europe.”