why do tan skinned people keep raising their children speaking a foreign language in America?

foreigners in America deny their children the right to speak English? Little children are forced to speak a foreign language at home growing up? Then they go to school and have to learn English? It don't make sense? I don't speak Polish, I don't speak French, my grandparents ignored their countries language because they did not plan on their children returning there? And they wanted their children to be excepted, and successful, in English speaking America? What successful American wants to hire some person who speaks another countries language when they can hire a proud English speaking American? So they grow up working at burger king and it's their parents fault? 7 out of 10 of these type of children grow up failures! It's child abuse!

So why do Spanish parents teach their children Spanish and expect them to learn English at school? Do use plan on moving back to your country and don't want your children to become an American?