Last time we got hot and bothered about Chinese money, the British crashed the entire nation via illicit drug sales. No reason something like that won't happen again.
Not sure what you're implying here - that the British will roll out illegal drugs to the Chinese market again?
Look at how everyone is treating Taiwan. That should tell you enough about how nobody will be willing to compromise anything for the sake of Hong Kong.
The implication is that the west has bled China dry without the cooperation of the Chinese government before and there's no reason it won't happen again. The West doesn't necessarily need to play softball with China to get its money.