Be careful what you wish for.
You might think that the Trump administration banning Chinese ownership of video-sharing app TikTok in the US on national security grounds would be a win for social-media competitors such as Facebook Inc, Alphabet Inc and Twitter Inc. Selling Bytedance Inc’s operations in several major English-speaking markets to Microsoft Corp raises the hope that TikTok might suffer the sort of benign neglect that’s neutered other Microsoft-owned media assets, such as LinkedIn and Skype. Facebook lost no time in launching a copycat video-sharing service to compete.