There are a lot of academics that will disagree with you, but that is a sterile discussion anyway. I am sure you still believe in the climate change myth and the theory of evolution, which cannot be proven or disproven. Iran is there because of migration, yet no famine or disease. North America has been desolate for millions of years, migration did not create famine but he is right it brought a lot of diseases that killed indigenous people. In the time since these migrations climate stayed fairly steady in NA until some wokies decided that we were going into the ice age and then extreme heat wave age. Which of these 2 theories do you subscribe to.