Given how closely major US tech companies are now affiliated and partnered with the US Federal government, arguably the direct potential threat from them to US citizens may well be higher than from across a very big pond.
People trot out "I'd rather our guys spy on me than them" a lot, but that's putting a lot of faith in your local government. Conversely, who do you think has more to fear from their logged prompts on DeepSeek, US or Chinese citizens?