Some can belive whatever they want, but by the year 1900 NYC was by far the largest jewish community in the world , it was more than double of Warsaw, Yet the largest jewish instutitions in NYC at that time was JTS . It wasnt until 1917 that Torah Vodass was founded about the same time as Yeshiva Of Brooklyn.
Things in the US would have been alot different had things been started to be built in the 1900’s rather than the 1950’s and 1960’s