Even the BBC acknowledges that members of these caravans openly admit their intention to enter the country illegally.
I assume you're talking about this quote, because it's the closest thing I can find to saying that? I would suggest a closer reading, because nowhere does it have anyone saying they plan to do something illegally. It say that they plan to do something (that there are, in fact, legal ways to do), and have been threatened over doing it illegally.
https://www.theepochtimes.com/migrant-caravans-prove-a-succe...
- has multiple specific examples
https://www.washingtonpost.com/world/at-the-us-border-migran...
>The caravan also includes single men who say they will attempt to cross the border illegally and others who plan to stay in Mexico.
https://www.usatoday.com/story/news/world/2018/11/09/migrant...
> but 122 quit waiting and entered the country illegally to request asylum, according to data from U.S. Citizenship and Immigration Services.
https://www.washingtontimes.com/news/2018/nov/28/migrant-car...
“The standard wisdom [that] it’s all about violence could not be supported by our data,” said Detlof von Winterfeldt, a researcher at CREATE.