If a law enforcement agency is so incredibly unpopular that they feel the need to hide their faces, they should not exist. Nobody likes LAPD, and they almost exclusively piss people off close to where they and their families live. Yet, no covering their faces.

ICE exclusively deals with targets who are not dangerous in of themselves (because when an illegal immigrant breaks other laws, the real cops respond), so they're not hiding their faces from them. They're hiding their faces from the general public, who, you might note, are the root of authority in a democracy. That is an unambiguous message that they are not acting in the best interest of the people, and should fuck off.

It is not possible to "dox" a public employee because that information is legally public information. Don't become a public employee if you want your job to be private.

see e.g. https://www.openpayrolls.com

All federal officers are at risk of being doxxed and their families being targeted. The national guard deployed currently has their faces uncovered to the public and no doubt have the same risk to them. Again, I don't understand how DHS is special in this regard. All credible threats to individual officers and their families should be pursued through the court of law exactly the same as threats to every other federal officer.

If I'm being dumb then please explain with stupid-speak to me.