Oh?
I won't try to go into the history of CPUs from the likes of Philips, Siemens, S/T Microelectronics, etc. but you're forgetting about a little UK company called ARM. Granted, aside from ARM, there haven't been recent, strong contenders for the mainstream CPU market not based in the US, but the other guys I mentioned have had some decent successes in embedded and niche markets.
It's also worth noting that even the big, US-based chip companies have design centers all over the world. And speaking of ARM, one of its main CPU design centers is in France.
And, maybe you've heard of a little OS called Linux? Well, that was created by a guy from Finland, named Linus Torvalds.
That message was certainly received.
I wouldn't call it laziness, in the strict sense, but I guess you could characterize a lack of long-term investment and commitment in such a way, but there were certainly other factors such as the dominance of x86 and Intel's patent barriers that held back competition aside from legal agreements negotiated with AMD and Via.