Not true, from D costa to willian a lot of players from South America join clubs in Russia and Ukraine as a stepping stone who then go onto play for some of Europe's best clubs. There's quite a big list of them over the years and it is not surprising considering how much talent is really there in those places that can escape through the holes in the net.
The City interest in Fred was quite well publicized, as was their interest in Sanchez. it's not like we haven't signed players City have wanted before. We are a bigger draw than them so saying 'I'm sure if they wanted him they would have signed him' is lazy and someway off the mark. Quite a few clubs across Europe were monitoring him so he isn't exactly some pub player who isn't good enough to even cast a glance at, just because you may not have known much about him.
I know where they were born but my point was those 2 initially played for clubs that according to you only second rate talents who can't make the grade go to.