True, but the US has a long track record of pursuing both foreigners and citizens—through prosecutions, extraditions, sanctions, or asset seizures—often years later and regardless of nationality. In practical terms, the risk of being targeted by the US for breaking a law is far higher than being blackmailed by a foreign state like China. The consequences are asymmetric as well: blackmail usually amounts to little more than embarrassment, whereas being pursued by the US government can carry lengthy prison sentences or worse.
This is not to mention that the US also engages in data collection for coercion purposes.