They want expertise. 

Eager to get a share of the fast-growing Chinese economy, private
equity firms are adapting to meet demands by Chinese companies that go
beyond financing. They include management skills, help in solving
regulatory problems in cross-border takeovers and access to a network
that allows them to expand abroad. As a result, buyout firms, which
usually aim for a controlling stake in a company, are seeking smaller
stakes and investments in state-owned companies.

They are not going away.  So says Blackstone Group, Kohlberg Kravis Roberts and Goldman Sachs.

“China is going to be a very, very important market for us long
term,” said Johannes P. Huth, a managing director at Kohlberg Kravis.
“The macroeconomic environment is very favorable, and the
entrepreneurial culture attracts us.”

A lot of folks benefit from China’s currency manipulation. 
Goldman Sachs for example.  Goldman Sachs gives more money to
Senate Finance Committee and House Ways & Means Committee members
(they have primary jurisdiction on trade) than I do.  One reason
for our twisted trade policy.