Those who say they're only against illegal migrants, hate your guts.
The number one problem with migration isn't the legality, or the migrant's qualifications, it's their race/ethnicity.
If someone wants to solve low birthrates with migration, if they're fine with importing foreigners into your country and give them full rights, that means they HATE your kind and want to replace you. Period.
Culture isn't just food and drinks, culture is RACE. Countries are supposed to be ethnic barriers.