"He united the people."
How to respond: But did he? Trump may have won 306 electoral votes compared to Hillary Clinton's 232, but she currently holds more than 2.5 million more votes than the president-elect. Thus, Trump did not "unite the people" — in fact, this election has caused a serious divide amongst Americans that's unlikely to be remedied for years to come.
Trump ran his campaign based on a platform of capitalizing on a subconscious (or, for the white supremacist movement, very conscious) fear of the "other," represented by various marginalized groups who were attacked over the course of his campaign. Despite being part of the one percent, Trump has continuously played to the average white American, those most susceptible to rhetoric against immigrants, the LGBTQ community, women, refugees, and anyone else that falls into this category of "other." When you run a campaign based on pitting one group of Americans against many others, you're doing the opposite of uniting people.