Were the goals of the United States overseas consistent or inconsistent with its goals on the home front in WWI?
It can be argued that these two were inconsistent.
According to President Wilson, the United States was fighting to “make the world safe for democracy.” At the same time, back on the home front, the country was not necessarily protecting democracy. The most obvious example of this was the Espionage and Sedition Acts that were passed during the war. These laws were meant to prevent people in the US from speaking out against the war. That is not a very democratic action.
Of course, it can also be argued the other way. The US, even with the Espionage and Sedition Acts, was very much committed to democracy overall. It made mistakes, but it was still a democratic country, making its goals on the home front and overseas consistent with one another.