It does seem that the extreme majority of migrants vote democrat. So, I could understand why they would think this. In any event the system is the issue, not skin color. The 'white' population have not been having enough children for decades, and they have not changed the system. So, the system will do whatever it needs to continue, despite peoples skin colour. Just look at the rest of the world, where the western system propagates demographic collapse soon follows. People are not having enough children, because they don't want to, it's not 'white' replacement as opposed to just the western system demanding that the population be replaced. All it wants is consumers.