What were the different ideological positions in Italy regarding emigration?

It can safely be said that the USA are the result of European Colonization and massive emigration. Virtually every American has roots and living relatives in other countries of the World. After viewing the slideshows with info about emigration, after studying the readings and especially “Italian Emigration and its effects on the rise Nationalism” write a brief summary of the material answering the following question: Why so many Italian emigrated at the turn of the twentieth century? What were the different ideological positions in Italy regarding emigration? How did liberalism affect emigration policies? In a 1910 article appeared on the “Journal of the Royal Society of the Arts”, the editors are baffled by the numbers of Italian emigration. After positing some rational explanations justifying emigration the writer of the article speaks about a contrary phenomenon: what is it?