As I understand it there are more approaches to natural rights than Aristotle’s human flourishing, which as I understand it isn’t strictly deontological. Yet what other approaches to NR are there other than this?
Also what other forms of deontological ethics other than NR, are there any other than Kantianism?
NR is not strictly deontological. Locke’s system is one non-Aristotelian form of NR. Nozick’s yet another.
-Jon
What about Thomistic ideology? Does it differ significantly from Aristotelianism or is it simply a “Christian reincarnation” of the same ideas?
It is a commonly understood that Augustine christianized Plato in a similar way that Aquinas christianized Aristotle.
No, St Thomas tries as much as possible to base his arguments on reason, but IIRC he advocates natural law and not so much natural rights.
-Jon