Why are deportation flights considered an effective tactic for controlling illegal immigration?

Deportation flights are described as 'incredibly impactful' and 'the most profoundly impactful tactic' the US Government can deploy to control illegal immigration. When Haitian migrants were deported from a camp, thousands fled back to Mexico specifically to avoid deportation. This demonstrates the strong deterrent effect these flights have on potential migrants. The effectiveness was evident when Haitians openly stated they were fleeing because they did not want to be deported, proving that the threat of removal significantly influences migration decisions. This explains why opponents of stricter immigration enforcement specifically target these flights, recognizing their substantial impact on reducing illegal border crossings.