What should be done about the caravan of people coming to the U.S.

[HairOfTheDog]

They are not doing anything illegal until they step foot on American soil. At that instant they are illegal. 

Your are misinformed Mags. They are not illegal when they step on American soil if they cross at a point of entry to apply for asylum.

They are under arrest when they come in. They cannot just walk away from the detention center where they go to. They do not get miranda rights only citizens get that. I may be wrong but I believe only 3 have gained asylum from the last caravan.

You are misinformed Mags. 

Migrants who cross at points of entry to apply for asylum are not here 'illegally' nor are they under arrest.  

They are detained for processing, questioning, and background checks once they enter.

If they are denied asylum, which the vast majority are, they can appeal the decision in immigration court.  They are legally protected from deportation during this time.

If they're denied asylum and lose their appeals but stay in the U.S. without authorization, then they are here illegally.