No basis is your opinion and you are of course entitled to it, although for simplicity's sake if we are for example to constrain our argument to the U.S.A.: statistics and historic records seem to support my claim, i.e., democratic strongholds / the blue states -- where do the vast majority of newcomers go to live? It's furthermore rational to predict that if one hasn't a concrete grasp of the language of their new home, they will gravitate toward concentrated populations wherein they sport higher odds of being able to communicate with someone....ANYONE...