Interesting, thanks for asking. To me the thread's context was that some European countries are "importing" migrants to bolster their pension schemes and that this is a bad thing (why?) An argument about immigration ensued and those often rub me the wrong way, being an immigrant and stuff. The part of "the public sentiment [for stricter immigration controls] is there, but the laws say the other way" is triggering me, too, because it alludes to some kind of "silent majority" which around these parts (ie. Germany) is usually brought up by loud minorities from the far right. I'm not denying that xenophobia is on the rise (here and everywhere) but it is not the sentiment of "the public". Combined with a description that seemed to lament the apparent lack of stricter controls led me to question why it would be important where you are born if you obey the law. Thinking of that, why would it be important if you don't?
Anyhow, revisiting the thread I can see that the post I answered to could be meant differently. I thank you for that and would like to advance my apologies to the OP in that case.