To address your concern, a proper international matchmaking service can be legally based anywhere and does not discriminate against nationality or citizenship. I've witnessed cases of Mexican men who immigrated to the US to match with their counterparts in Mexico and greater Latin America. Our industry does not discriminate.
I don't like the idea of matching people solely on the basis of residence sponsorship and we coordinate and agree with the federal government to discourage these practices.
The U.S. Department of Justice website states that human trafficking is "a crime that involves compelling or coercing a person to provide labor or services, or to engage in commercial sex acts. The coercion can be subtle or overt, physical or psychological. Exploitation of a minor for commercial sex is human trafficking, regardless of whether any form of force, fraud, or coercion was used."
Any organization that falls under this definition is a human trafficker.
All international matchmaking operations are simply in the business of finding compatible and willing men and women that partner with us within our niche. We do not discriminate against either gender based on their income, profession, or political views as long as they comply with applicable laws.