Can you stop dogwhistling and beating around the bush, and tell us exactly what you think we should do to H1Bs and green card holders and foreign-born naturalized citizens who have third cousins overseas?
You've outlined your problem, great, what's your solution?
There's no shortage of this kind of suggestive wink-wink-nudge-nudge eyebrow-wiggling, but nobody ever seems to want to say out loud what they think should be done about it.