Lmao what. The only reason the Xbox wouldn't be successful is, well, Xbox. MS aren't doing a great job with their consoles, but that doesn't mean it wouldn't be possible for competition to exist.
I’m sure that if Microsoft was allowed to do that Sony would have bought up a Japanese studio with the backing of the Japanese government like a Capcom or Sega. Probably the only reason Sony didn’t buy a bigger share of Kadokawa is because MS isn’t a real threat.