I guess the concern is mostly based on the current situation of the quality of "made in china". however, European companies purchased by Chinese would continue to make their products in Europe. it's nothing about "made in china", it's not even operated by china, it's only financed by US dollars and Euros owned by China. companies making good product do not necessarily have good financial sources, but capital wants to support good companies.
when Chinese bought Volvo and Indian bought Jaguar LR, consumers were surprised by the news and discussed with negative attitude. I think the two companies are doing much better now than when owned by Ford, in terms of overall operation, product wise and financial wise. roughly the same time, GM opposed to selling SAAB to Chinese Geely or Indian Tata. Russian wanted to join in but was denied by another major stakeholder. "with no alternatives left after GM continued to block any form of involvement with a Chinese partner, Saab officially filed for bankruptcy after a three-year fight for survival. (wikipedia)" the good news is Saab fans don't have to worry the quality of made-in-china Saab now and for ever.