This hypocrisy is also common among minorities in the West. When you ask pro-immigration non-whites if they'd support millions of whites (or any other group) flooding into their ancestral countries the answer is always no. Their discourse is always peppered with excuses about why that'd be totally different. e.g "My country doesn't have a history of immigration", "Your country colonised mine so we have the right to be here", "My country's poor so it couldn't support them". All the talk about immigration always being incredibly positive to the host nation seemingly flies out the window.