Speaking as someone very familiar with the situation in Xianjiang (my best friend is a world authority on it), there are countless differences. The most obvious difference is that Xianjiang became a part of China in 1949, whereas Israel withdrew from Gaza in 2005, and Gaza has also been a part of Egypt. Moreover, China's control is focused on assimilation, a crackdown on religious practices, and re-education, whereas Israel is concerned with none of those things. I could go on forever.