You must have never dealt with Chinese tourists. It’s not racism as much as directly observable behaviour of many Chinese tourists, especially towards other Asians or black people. It shouldn’t be surprising that many people in mainland China are radicalised, and it comes as no surprise that’s how they behave outside their country.
Dude, people are living their live. Israel chose to bomb their homes. Why is the Israel government and (some) people in the country such idiots for not finding better way to avoid harming civilians? Why are they attacking despite knowing it’s mostly killing civilians? Why are these murderous attackers so incompetent and heartless?