Bing is accessible from China. FB and Twitter must comply with censorship rules and storage of user data in China, among other things, to operate in China. Google was operating and accessible in China until China made clear the rules for them to follow. Google decided it couldn't follow they they pulled out the search engine business from China. China didn't force Google to sell. Censorship is bad but that is another issue.

And to do personal attack doesn't make you look smart.