Ah, yeah, I agree. But I don't agree that that position is tantamount to "supporting mass immigration", by the normal colloquial meaning of that phrase. I think that wording, unqualified as in your original usage, implies antagonism toward the position you're describing (though, as I mentioned in another reply, "mass immigration" might have a domain-specific definition I'm not aware of? Sort of like how "obese" technically refers to a much lower weight than the way we use the word colloquially, and how "mass shooting" can technically mean a victim count as low as three, depending on other circumstances, again contrary to what the typical colloquial threshold probably is in most cases).