4 ms·There were laws restricting immigration from non-white countries.by devdas 10y agoThere were laws restricting immigration from non-white countries.gohrt 10y agoUntil 2006?dominotw 10y agoUS is mainly family based immigration and people could comein only if they already had someone here which meant only europeans. They started work visas in the 90's which let ppl from everywhere in.