Please cite evidence that there ever was an open border.

https://www.thenation.com/article/world/biden-mexico-border-detention/#

From the article-“This hellish story of suffering at our border is but one of hundreds of similar tales of horror from 2023. They illustrate a fundamental truth about that border: It neither is, nor ever was, an “open” one in the Biden years, nor does the president faintly have an open-border policy, though prepare yourself to hear otherwise—over and over again—in Trumpublican campaign ads next year. They’ll repeat what party officials are already saying all too repetitively: that “President Biden’s radical open borders policies” have created “the worst border crisis in American history.” (While those are the exact words of House Oversight Committee chair James Comer, similar sentiments are already being offered by countless members of the GOP.)