The wall has become a metaphor to Mr. Trump and his millions of supporters. It represents a divide between “us” and “them,” a physical demarcation for those who refuse to accept that in just a few decades, a majority of the country will be people of color.
This is about more than just a wall. Mr. Trump promised it in 2015, in the same speech in which he announced his candidacy, the same speech in which he called Mexican immigrants rapists, criminals and drug traffickers. His goal was to exploit the anxiety and resentment of voters in an increasingly multicultural, multiethnic society. Mr. Trump’s wall is a symbol for those who want to make America white again.
The chant “Build that wall, build that wall” became his hymn — and an insult not just to Latinos but also to all people who do not share his xenophobic ideals. The wall went from a campaign promise to a monument built on bigoted ideas. That is why most Americans cannot say yes to it. Every country has a right to protect its borders. But not to a wall that represents hate, discrimination and fear.