The Immigration Thing

Immigration has rapidly become the foremost issue of the era for western countries. Ostensibly, at least for now, immigrants are accepted/tolerated in the economically successful and advanced nations because they are fleeing poverty and undemocratic, failing authoritarian governments. 

Of course, it's not that simple. Like everything else, politics is a game of numbers. In the last federal election in the US, the numbers didn't work out in favor of the left, at least in part because of the candidates presented. One way to rectify this situation is to civilize millions of immigrants, believing that they are automatically going to follow the dictates of the left.

That tactic might work in the short term but it's a big gamble. Rather than encourage the third world dissatisfied to reshape their own political and economic circumstances, developed countries assist them in moving to the west. Foreign students in western universities don't return to their home countries and change the politics and economies. They either stay in the west or take positions at home where they don't upset the system.

It turns out that for the interested parties, it is easier to ignore the laws concerning the admission of non-citizens than to change those laws. Enforcement of the laws is considered draconian.

What is the position of the governments and populations of the countries supplying illegal immigrants? No one from the media ever discusses the subject. If millions of Americans were moving to India or Australia or even Canada there would be much US speculation about how to staunch the flow. If it's been the goal of the US to spread democracy and the capitalist free market world-wide, as was supposedly the case during the Cold War, the effort has been a failure in many ways.

Isn't it possible that a substantial invasion of immigrants with a different cultural background will change the Overton window of American politics? Won't there be individuals among them with political ambitions that will use the numbers of immigrants to affect US elections in their favor and change the culture of the country?