Recent wisdom here...
the nature of immigrants matters greatly...America BENEFITS from educated immigrants, but most ILLEGAL aliens are poor and often ignorant-- net takers from the start. The guvment admits that even citizens who do not finish H.S. become net users of guvment services. Add in rates of illegitimacy of 70%, and ILLEGAL aliens are socio-economic train wrecks for America.
If it were true that we should double the immigrant flow, and that all immigration is a positive, then California, where so many ILLEGALS live, would be booming.
Instead, ILLEGAL aliens constitute the majority of gangs, welfare cases, and felon prisoners in Mexifornia.
Yes we need more immigration to stay competitive, but ONLY IF we can choose who emigrates.
We DON'T need more uneducated and unskilled millions of ILLEGALS who are SURE to become guvment dependents, which is why the ObaMessiah loves them.
We ONLY TRULY need the educated and skilled to emigrate.
If a legal Mexican student earns a masters in Computer Science (as rare as rocking horse poop), then give her a Green Card!