Just look at the second amendment:
A well regulated Militia, being necessary to the security of a free State,
the right of the people to keep and bear Arms, shall not be infringed.
The "well regulated militia" phrase caused at least two very different opinions: United States v. Miller [1] in 1939 and District of Columbia v. Heller [2] in 2008, with very different results.Just as the second amendment has this "militia" phrase that provokes arguments, the fourteenth amendment starts with
All persons born or naturalized in the United States, and subject to the
jurisdiction thereof, are citizens of the United States and of the State
wherein they reside.
and the phrase "and subject to the jurisdiction thereof" is vague enough to trigger discussions about whether it applies to illegal immigrants or not.Natural language is just bad in expressing rules.
[1]: https://en.wikipedia.org/wiki/United_States_v._Miller#Decisi...
[2]: https://en.wikipedia.org/wiki/District_of_Columbia_v._Heller...