What is racist about the comment? 

The Chinese State through part ownership in Chinese Companies has been working strongly to buy assets and technology in foreign countries. Very smart for China. The difference compared to most foreign takeovers being the involvement of a State Actor. State Actors tend to have access to more money than private business, and China is the world's 2nd largest economy. Profits are always repatriated to ownership. This is pretty obvious stuff. 

There is a fair debate to be had about whether State Actors should be welcomed by sovereign countries to buy their assets and sensitive technologies. bavius does not have to be racist to believe that is a bad idea. 

Furthermore, different State Regimes demand different treatment. Would it be racist to want to prevent the sale of such things to N. Korea. Or Saudi Arabia? Arms sales to Saudi Arabia got the Liberals in a lot of trouble. Again you can debate China's record, but it's not exactly pretty.