They didn’t “come to America”, it was fleeing the army (a long Drumpf tradition).
Grandfather was a pimp, father a klu klux klan member.
Trump’s grandfather was fleeing enlistment and evading taxes, and opened brothels in the Klondike. (http://www.cbc.ca/news/canada/trump-canada-yukon-1.3235254)Trump’s father was a racist who had to use his son as a figurehead after Congress called him on the carpet for banning blacks from the federally-funded housing he built. In 1975 they made a deal with the government avoiding an admission of guilt, something the younger Trump has done ever since. It appears very likely that Fred Trump was a member of the KKK, being arrested in a riot in 1927 (where one article describes all seven people arrested as being in Klan garb): https://www.vice.com/en_us/article/mvke38/all-the-evidence-we-could-find-about-fred-trumps-alleged-involvement-with-the-kkkTrump has ties not only to Russia but the mob (https://www.politico.com/magazine/story/2016/05/donald-trump-2016-mob-organized-crime-213910, and http://www.politifact.com/truth-o-meter/statements/2016/mar/02/ted-cruz/yes-donald-trump-has-been-linked-mob/), as well as employing illegal immigrants as a matter of course when convenient to him. He built a (MUCH smaller than he claims) fortune on ripping off investors more-or-less legally, starting businesses, getting investors under a contract that guarantees his share, then declaring bankruptcy when the businesses fail. And let’s not forget Trump University, which was an outright fraud, for which Trump SETTLED for $25 million without admitting guilt (despite claiming he never settles lawsuits, he does frequently – see what he learned from his dear old dad?). (https://www.usatoday.com/story/news/2016/11/18/reports-trump-nears-settlement-trump-u-fraud-case/94068946/). Melania Trump illegally worked on a tourist visa, though possibly out of ignorance, but this is the very kind of thing he rages about — for other people.When Trump talks about immigrants being criminals, he’s talking about his own family. And, of course, himself.
Like many immigrants.. Once in they want to close the door after them.