All periods in U.S. history when immigration has been reduced or halted:
The restriction/reduction periods were:
1790s — racialized naturalization limits and alien deportation power.
1875–1882 — first federal exclusion laws.
1882–1943 — Chinese exclusion.
1885–1907 — contract labor, pauper, disease, anarchist, and morality exclusions.
1907–1924 — Japanese and broader Asian restrictions.
1917–1965 — literacy test, Asiatic Barred Zone, national-origins quotas.
1929–1945 — Depression-era administrative restriction and Mexican repatriation.
1940s–1952 — wartime and Cold War ideological/security restrictions.
1952–1965 — McCarran-Walter quota/security regime.
1965–1978 — new worldwide and hemispheric caps despite ending national-origin discrimination.
1980s — refugee ceilings, employer sanctions, unauthorized-labor enforcement.
1990s — expanded detention, deportation, benefit restrictions, asylum limits.
2001–2008 — post-9/11 security restrictions.
2017–2020 — travel bans, refugee reductions, asylum restrictions, public-charge expansion.
2020–2023 — COVID/Title 42 and visa-entry restrictions.
2024 — Biden southern-border asylum/entry restrictions.
2025–2026 — refugee-admissions suspension and expanded travel/visa restrictions.
Edit: actually nah, I’m not gonna wait for you to walk into this conclusion.
You put a single presidents name down for these bans with Biden, which was in response to a global pandemic where every country was instituting travel restrictionsz
But for trumps explicitly ideological Muslim ban you merely put
> 2017–2020 — travel bans, refugee reductions, asylum restrictions, public-charge expansion.
I am going to make the claim that you are pushing propaganda. If you had included the presidents for every section I wouldn’t think so.