4. Are we really that good at assimilating? Yes, American culture is powerful. But now there is an entrenched lobby for bilingual education, and identity politics curricula that teach young people they’re right to resist assimilation. Formal and informal race preferences reward Americans for maintaining separate ethnic identies. And then there’s Univision, which would go out of business if too many people spoke the common language…

6. Why not “Enforcement First … Amnesty Second”? Preventing unathorized immigration–i.e. having a working border–isn’t easy. We’ve made strides, and immigration flows have slowed significantly. But we still have ways to go –only a minority of employers use the E-Verify system, for example–and we don’t know if the unauthorized flow will resume if the economy, particularly the construction industry, picks up. Why not wait and find out if enforcment measures (including any new ones that would be part of “comprehensive” reform) work–and then, if they do, go ahead give the undocumented the legal status that would ordinarily encourage more uncontrolled border-jumping?