All who have family remaining in China are potential spies for the CP. Family is much more important to Chinese than to most Americans and CCP is happy to use threats to Grandma to elicit cooperation in America. That is less the case in 2nd and 3rd generation citizens but it is still a source of blackmail/extortion activity.
That all depends. Most of my family here hates the branch of the family back in Hong Kong for some perceived slight decades back. (I don’t like them for a separate reason - all the ones I’ve met are rude, stuck up pricks.) There’s been family stories of agents attempting to recruit a couple family members here in tech and defense industries (decades back) and being told not only “no,” but “When you torment them, could you please send me pictures/video of it? And let me know when you kill them, as I would like to throw a party to celebrate.” To which the recruiters look really puzzled and leave.
Unfortunately, there’s no way to tell if my particular family’s stories are true or not as all those relatives are still with us, or died years later of old age. That said, this recruiting tactic and result have been reported before by other Americans of Chinese descent and confirmed by various means.