Can the Holocaust happen in the US?

Can the Holocaust happen in the United States? I think this is a rhetorical question because something like that could never happen in the United States during this time period. We have rights in the consitution that protect us from something like a genocide taking place. Maybe before the constitution was written something like that COULD have taken place, but definitely not now. If so, The next Holocaust won't be based on religion or culture or skin color or even sex. It will be based on income or wealth.  It would be the poor people in our contry that would be killed. I'm not sure if this could really happen but if it did, this is what it would be like. Because there are already conflicts in our contry about poor verse wealthy. And the wealthy people don't really want to help the poor people because they feel like if they want monay then they can work for it...but some of them aren't even fit to work. It probably wouldn't necessarily be a holocaust because millions of poeple wouldn't be killed if this had taken place, it'd be less.