They came to the meeting only to talk about their borderless bill. and walked out when the facts about the border crisis began to be presented to the media.

They Just Don’t Care–> Democrat Leaders WOULD NOT EVEN LISTEN to Border Security Briefing at WH Meeting

The White House official told TheDC that both Pelosi and Schumer refused to hear out Nielsen’s briefing and instead advocated for two solutions to end the government shutdown. Neither of the Democratic options would provide the additional funding for border security requested by The White House.
“Democrats in the room either don’t care that there is a humanitarian crisis on the border or just prefer ignorance. It was incredibly disheartening that they don’t want to know the facts when making policy,” DHS Spokeswoman Katie Waldman said in a statement to TheDC.
Representatives for Pelosi and Schumer did not respond to requests for comment.