not sure how this works out. I think the idea is to block them before they get to the border to claim "asylum" ( they are being coached on what to say as always)..Trump claims national security and do it I suppose
They aren't eligible for asylum.
Notwithstanding claims to the contrary, undocumented aliens do not have a "right" to apply for asylum in the United States. Asylum is a discretionary form of relief.
The asylum provision in the Immigration and Nationality Act just states that eligible aliens “may” be granted asylum.
The United States is a signatory to the UN’s Convention and Protocol Relating to the Status of Refugees. This means that it cannot return or expel “a refugee in any manner whatsoever to the frontiers of territories where his life or freedom would be threatened on account of his race, religion, nationality, membership of a particular social group or political opinion.”
It does not mean that people who "want a job" or "fear gang violence" are eligible.
Something else to keep in mind when it comes to the credibility—or lack of credibility—of many asylum claims is that many aliens pass through countries with their own asylum laws on their way here—including Mexico.
https://thehill.com/opinion/immigration/412761-caravan-will-prove-to-the-world-that-the-united-states-has-an-open-border