And yes, I agree that Chinese nationals are to be treated with way more suspicion as well. Anyone with relatives in China can be pushed to do whatever CCP needs. Also everyone with official links to the CCP should be under 24/7 monitoring, something something "covert police stations" and Confucius Institute.
but plenty of not-men out there doing SVR work. Anna Chapman comes to mind, or the little lady who was making friends with the NRA and all of those GOP politicians...
https://en.wikipedia.org/wiki/Anna_Chapman
I'll grant you illegals in general, those are typically married couples.
They got a prostitute the night before their botched Salisbury trip, rather than shag each other. The whole gay bit came from their Russian TV ruse appearance.