Well I don't know what your specific position is w/r/t counseling people experiencing these anxieties, but I would hope that you're keeping them well-informed of their 1st, 4th, 5th, and (quite frankly) 2nd Amendment rights.
On the digital front, there are tools like Signal that all "normies" should be using. Also EFF has good resources on this: https://www.eff.org/document/eff-border-search-pocket-guide