It's just another example of how far our nation has fallen in a relatively short period of time.
Completely disagree.
There's a vast difference between assassinations without trial of both US and foreign nationals vs. not reading a suspect their Miranda rights. Note that the rights themselves are not being stripped away, as is obviously the case with the former.
This doesn't mean either practice is noble or desirable, but it's patently ridiculous to draw false hyperbole-laced equivalencies all over the map.
In short, the Supreme Court ruled that not informing suspects of these rights violated the amendments, and the Constitution itself says they have the right to do that.