The UK sort of tried that after WW2. Hollywood embargoed the UK, and it even blew up to a wider diplomatic wrangle between the USA and UK. It was actually even worse: indirectly for reasons not important to go into it also ended up crippling the British film industry for years. But of course, part of the issue was the UK was heavily dependent on the USA at the time. One way or another, the strong will tend to use their power to their benefit.By all means invest in one's own film industry. Question is, should countries follow China's lead, and restrict the number of foreign films?
China restricts and censors for obvious reasons that it wants to carefully control what its people have access to. But it's not just that: China is now a huge film market. There is therefore a huge premium for a film that can be allowed into Chinese cinemas, which will cause studios to compete for access, and to follow China's rules on acceptability - thereby of course also meaning these films go out to the rest of the world "China-friendly" as well. Alternatively, a film that ticks certain boxes can be called a Chinese movie (Chinese investment, actors, locations, some rules on what is acceptable), which again is leveraged to China's geopolitical benefit. Thus China can acquire substantial Hollywood influence so that Hollywood does China's work, by manipulating Hollywood's drive for profits.
It wasn't shifted in location - I'd have preferred it if it had been. It was set in the UK, but a thoroughly Americanised vision of it. I find that somewhat irritating.Also, as for 101 Dalmations, is a shift in location really that much of an issue?