Talk about fear mongering. The two examples that you posted are not indication of anything extraordinary. Of course they question your claim to US citizenship if you can't provide a US passport.
First example the kid didn't provide a US passport at port of entry. What do you expect to happen if you can't produce documentation?
Second one? He pleaded guilty of selling cocaine and then arrested by ICE afterward. He didn't have any documentation that he was a US citizen at the time and also didn't have a lawyer. I don't feel any pity for a cocaine dealer neither ICE because they fumbled the case because they confused the name of the father. He was later released because he proved that he was in fact a US citizen.
If you get asked a question at port of entry just answer truthfully and carry an unexpired US passport or foreign passport with your GC. You will be let in.
Burnpro23 reacted to a post in a topic:
Land border crossing as citizen first time.