The enemy of my enemy is my friend. Israel is friends (allegedly) with the USA. China wishes to oppose the USA. China has made explicit threats that US interference with their ambitions in Taiwan would have repercussions on “Israel”.
https://www.haaretz.com/israel-news/2023-12-14/ty-article-magazine/.premium/as-china-sides-with-palestinians-gaza-war-could-strengthen-israeli-ties-with-taiwan/0000018c-6842-dbd5-a39c-ff7356050000