Pardon me if I'm being dumb, but why invite westerners more into the country? Last thing China needs is a bunch of nazi filth to invade the country and risk harming anyone.
On what, consensual sex between Chinese and foreigners?
Fetishisation is really sleazy but it's not exactly the government's business. Unless you're talking about things like prostitution which is already illegal and suppressed when it gets out of control, like in Dongguan a few years ago.
This is like asking why Europe wants Asian tourists and assuming it would make Europe communist. That's not how it works. Instead, there will be a cottage industry catering to English speakers and they will not meaningfully change anything outside of that.
It's for tourism money, and the people racist enough to kill a Chinese person for being Chinese will 99.9% self select and choose a different destination.
Someone willing to visit China probably isn't quite that level of hateful, and if they are, they'll be doing it to just lie about the country (like the youtube "China watcher" white supremacists do.) Having more non-nazi people visit will make it clear to Europeans that their own media's claims about China are just lies.
And the western media's only retort will just be "Don't ever visit China, just trust us on what it is really like and if you do go, don't believe your own lying eyes." which only works on the exceptionally brainwormed (who were never going to change their minds anyway)
I expect that westerners who actually go to visit China would be the ones that aren't rabid xenophobes. Overall, I think it's a very good idea for people in the west to actually see China first hand. This is the best way to undermine western propaganda about China.
I'm guessing the easiest way to break the relentless western anti-China propaganda is to encourage people to see for themselves. Also, crackkker-money.