Yes, it is the encouragement of individuals to come here (healthcare for all, social services, etc.) and then when people are not patient for the handful of slots, the cross illegally with the notion of “they will never deport me”.
And then the country fundamentally changes.
And by the way, I am for legal immigration. Many of my good friends and fellow partners are Asian (Taiwanese), Indian and Nigerian. All are bright, funny, rule abiding, focused on family and speak impeccable English.
They all - just like my grandfather who was escaping the holocaust, came through legally.