Earlier quoted context omitted.
Is your problem with them that they're synthetic, or that it's nicotine? Pouched tobacco like that been used for decades in some places in the world, or even without pouches, just making your own ball and sticking the tobacco under your lip. I'm not sure these countries have a higher rate of GI/gut problems than other places, which kind of would invalidate your entire argument here.
You customarily spit out that saliva that’s been in contact with your dip. Swallowing it is way worse for you. When I framed houses the guys that chewed would leave a little trail of brown spots everywhere.
The Snus saliva (actual snus) just gets swallowed. Same with Zyn and others.