21c's entry for join
if you can't beat them join them
souhu has an article entitled:
youdao's entry on 胜之 says:
The music industry is beginning to realize that they must adopt the "If you can’t beat 'em, join 'em" mentality when it comes to dealing with pirates.
another example of usage:
It doesn't seem altogether too common, and most likely is copied over and over from 21c, but if it is showing up in headlines on souhu I would imagine it is quite acceptable.
a qq article even put:
as the saying goes - if you can't beat them, join them.