A Chinese investment would likely be substantially less than 100% , at least initially.   At the moment, I believe Li Ka Shing's companies own about 10% of CIBC through a complex structure via Hong Kong, which was put in place after a direct (and transparent) stake was sold,...say, about ten years ago? 

I'm afraid you don't understand the difference between "ASSET MANAGEMENT" and brokerage.    They aren't the same.   Look it up.   (The CSIS recruiting standards must have slipped.)

I could go on, but there is little point debating with people who are being deliberately disingenuous.  The 'watch the squirrel' tactics are wearing thin.