Absolutely yes. If you do some envelope math about the scale of the problem, you realize it'll be a crisis like nothing we've ever faced before. For example, i

Absolutely yes. If you do some envelope math about the scale of the problem, you realize it'll be a crisis like nothing we've ever faced before. For example, in Bangladesh, 45% of the population (74m people) live within a meter of sea level. Bangladesh is in some ways like a huge Mississippi River delta. Imagine what would happen if 74m people had to flee their homes... It's tough because humanity has never dealt with a migration on that scale. But the outcome will certainly be chaotic, there won't be supply chains to feed that many people let alone house them and provide sanitation. And in that level of chaos there will be military response and violence.