I don't think most US software engineers are going to fair any worse than anyone else, honestly. If you have one of these $300-400k TC jobs the HN folks act like grow on trees, you're unlikely to be replaced by someone responding to a RemoteOK job add because they're mostly hiring people local, and people with huge online followings/internet-famous dev types. If you make $115k for a bank and got your last 3 jobs from recruiters and LinkedIn, you're equally unlikely for different reasons.

The middle area filled with $200k/yr consultants will probably hurt a bit, but I'm not sure they haven't been competing with that group already.