isolation is bad for seniors, and what of our senior parents?

A Harvard doctor is bringing pets into nursing homes to save seniors from isolation, and the resulting decline on health. In the meanwhile our foreign parents are isolated from their immigrating children, when immigration departments consider them to not be immediate family. They can only come to the US and Canada for visits. These are parents who dedicated their lives to secure our fitire against some difficult odds. As a result we can productive in multiple countries, pay taxes and someone else's pension, but not our parents'. They are considered a burden, all while the system profits from their investment in us.  Our parents are rewarded with precisely the isolation and loneliness that crush seniors according to Dr. Thomas, even though they earned the right to be close to us wherever we might live, and to receive emotional and financial support.