from the Stoics of late antiquity until now,
natural rights have stood rather firm.... a few laymen here and there might not believe in them, but that's based in their own personal political ideology rather than in any philosophical argument.
I'm not confused as to why anyone would question them, but it still boggles my mind why any modern man would outright deny their existence... at the very root of being a free man is our natural rights....they provide the very foundation for our society, our culture, and our governments ( not just in the US).... and for some odd reason, we still run into laymen who will argue against them, as if everything we are and do is bereft of philosophical underpinnings.
I can understand Haymarket making a stink about them... he possesses an irrational fear of anything libertarian( acute liberphobia
)... it's a knee jerk reaction of his to deny anything a libertarian might believe in, even if that belief is beneficial to him and to mankind in total.
I haven't pegged why you feel the need to disbelieve them yet... but i'm not surprised either of you fail to provide argumentation beyond " I'm not seeing...."