Your link says the opposite of what you claim.

> Although the asylum claim proved to be time-barred—aliens are required to bring such claims within a year of entering the country—in October 2019 Judge Jones did grant his request for “withholding of removal” based on his “well-founded” fear of persecution by Barrio 18. The government did not appeal, so Jones’s ruling is now final.

> The removal being in error does not make him innocent.

Innocent is the default. That's a fundamental part of how our legal system works. The government must prove you guilty.

They did not have "every right to remove him." As the article you linked says, Abrego Garcia was specifically granted a withholding of removal order.

To only one specific country. Not in general.