The Jacobin piece enthusiastically backs this "left nationalism" vision of the nation as an endless creole friction zone open to every identity and claim, but it sidesteps the harsh truth that applies to every society: if a nation doesn't prioritize its existing citizens first—securing borders, protecting native workers' wages and housing, and preventing welfare systems and public services from becoming overwhelmed by unchecked inflows—the social contract frays, trust erodes, and resentment builds
Immigration is nowhere near the top of the list of things that fray the social contract, erode trust, and build resentment. Corruption, particularly in the administration of "justice", is vastly more important.
Jacobin actually has a dialogue between people who feel the way he does and people who feel more the way you do.