He said that........
And there is the rub.. Trump say a lot of things. Saying and doing are two different things. He has shown through his entire career that he'll say anything to 'close the deal', even if (and more often than not) it is a blatant lie (truthful hyperbole) and he even brags about this in his various books- most notably The Art of the Deal.
The good way to know how he'll really behave is not to listen to his words, but look at his actions. What does he doe with his own money and his own businesses?
On issue after issue, when it comes to his own money and his own businesses, he doesn't put America first and he certainly doesn't take the Conservative, free-market position. He runs his businesses and spends his money like a New York Liberal, Cronyist who is in it for himself, everyone else and the truth be damned.