Arson-free prophets

Mencius Moldbug explains why it is vital to read history’s losers:

This power, which the old States of Europe expended such rivers of treasure and blood to curb, at the beginning of the century, had transferred its immediate designs across the Atlantic, was consolidating itself anew in the Northern States of America, with a wealth, an organization, an audacity, an extent to which it never aspired in the lands of its birth, and was preparing to make the United States, after crushing all law there under its brute will, the fulcrum whence they should extend their lever to upheave every legitimate throne in the Old World.

Hither, by emigration, flowed the radicalism, discontent, crime, and poverty of Europe, until the people of the Northern States became, like the rabble of Imperial Rome, the colluvies gentium. The miseries and vices of their early homes had alike taught them to mistake license for liberty, and they were incapable of comprehending, much more of loving, the enlightened structure of English or Virginian freedom.

If the first great wave of immigrants were incapable of comprehending, much more of loving, the enlightened structure of English Virginian freedom, what reason is there for believing that this second great wave of third world rabble is capable of comprehending, much less loving, its surviving remnants? Even on the purely practical level, who genuinely believes that young men from El Salvador, Mexico, and Somalia are going to be able or willing to subsidize the lives of old white women 30 years from now?