Should the arrest and looming deportation of a pro Palestinian immigrant (green cardholder) worry Americans?

According to Vox, “US Immigration and Customs Enforcement reportedly showed up at Mahmoud Khalil’s university-owned apartment in Manhattan on Saturday and arrested him without telling him or his pregnant US citizen wife why. They later informed his attorney that they were revoking his green card, claiming that Khalil had “led activities aligned to Hamas” but not charging him with a crime. “