It is not in the constitution, so it can’t be done - your point.
Actually they’re saying the opposite. It seems everyone else in this thread seems to misunderstand it the way you did, though. The actual issue is that there is no constitutional right because you cannot having this in the consititution because there’s no guarantee the US would be able to follow up on the right granted to its citizens.
E.g., as you said before, there is no constitutional right to cheap oil, either. The US gov can try to provide that, but they cannot guarantee they can provide that, hence they cannot grant it as a consititutional right.