Hispanics will “unmake” America by creating a one-party state governing on behalf of a permanent underclass if immigration reform passes, according to a conservative think tanker.

In an interview with the Washington Times last week, Dr. Stephen Steinlight of the Center for Immigration Studies described a dystopian future in which the growth of Latino voters would create an authoritarian political system modeled on Mexico under the Partido Revolucionario Institucional (PRI, in Spanish).

We can expect a disaster. In sum, we’ll witness the unmaking of America… It would subvert our political life by destroying the Republican Party. The Hispanic vote will make the Democrats the PRI of America. A GOP relic might survive regionally, but could never successfully contest a national election.

Political analysts, Latino activists and mainstream politicians have all urged the Republican Party in recent years to cultivate the Hispanic vote by moderating its tone on immigration -- an emotional issue for many in the Latino community. Steinlight takes the opposite approach, counseling Republicans to double-down on hardline immigration policies, despite the fact that Latinos will become a greater share of the electorate in coming years whether immigration reform passes or not.

In the future America that Steinlight imagines, a once-unified nation would collapse into social strife due to what Steinlight views as an insurmountable barrier posed by bilingualism.

Immigration reform would turn Hispanics of Mexican origin into the “predominant demographic” in the United States, according to Steinlight, which he says will "destroy social cohesion."

Despite Steinlight's opposition to America's changing demographics, whites will remain the largest largest ethnic group for some time to come. The Latino population as a whole -- the majority of which is native-born -- will reach only 29 percent of the population by 2050, compared to 47 percent for whites, according to projections by the Pew Research Center.

Steinlight has made similar comments in the past. In a video of a speech posted to YouTube last year, the immigration hardliner raised alarms about the possibility of a Latino civil rights movement.