is the sound of vinyl due to the physical process of the turntable?

Tell you what. Why don't you buy a copy, try it out, and let us know how it goes?
https://www.discogs.com/No-Artist-The-Nothing-Record-Album/release/2161017

People actually sell that?
Worse still people ACTULLY buy it??

Hi,
it shows, have: 96, want: 111. and a good median price.
Physical contact in real time and no computing time.
But there is the CD version also for comparisons, here have: 1, want: 1.

is it possible to make a dummy record like the nothing record (1978) that was cut with no music just the blank grooves and play that while i run digital audio somehow through the stylus cartridge

No. The problem is that digital itself has artifacts called 'aliasing' which the digital industry does not like to acknowledge is actually distortion. In the analog world this form of distortion is a kind of intermodulation known as 'inharmonic distortion'. The ear is keenly sensitive to it! as its mostly higher frequencies. This is part of the brightness of digital.
The LP actually has wider bandwidth, being good in playback and record to at least 42KHz (my cutter system is bandwidth limited at that frequency to help reduce the likelihood of damage to the cutter; it can actually go higher). Almost any cartridge these days can go that high. While there isn't much information up there (mostly harmonics if anything) this does help to reduce phase shift.

No, I don’t think aliasing is the culprit. Because if you listen to a digitally remastered cassette the so called digititis is absent. No more harsh weird sounding high frequencies and overall hardness to the sound, which are the calling cards of CD playback. No, the answer lies elsewhere. It lies in the inherent problems of CD players, their inability to extract the data correctly from the CD - as I’ve been saying for some time. The “digital artifacts” are produced by the act of playing the CD. Insidious isn’t it? 

Once you mechanically isolate the player, eliminate the scattered light problem and stiffen the CD itself the sound you hear is the pure analog sound that was encoded on the CD in the first place in all its glory. Old or new CDs, doesn’t matter. Hel-loo! Anybody out there?! Car 54 where are you? 😟 Wake up and smell the roses!! 🌹🌹🌹

Sam here again, i'm not sure if the sound I like from vintage vinyl is the hardware creating the stereo effect I hear or is it present on the master tape? And if it is present how come I don't hear it on the digital album.

I did discover this and it may just be the placebo effect however i think it sounds more vinyl like with that stereoness i hear with 1970's vinyl. i'm running digital audio through this filter with all the effects turned off. 
https://i.postimg.cc/Y0v3Hsgt/azimuth.jpg  I realize running audio through the azimuth filter with all the effects turned off should have no effect on the sound quality? So what am I hearing.

sample 1: http://u.pc.cd/SO7rtalK

sample 2: http://u.pc.cd/VEyotalK

results: https://i.postimg.cc/GhFCw7jF/cover-edited.jpg