It’s not as if all amphetamines are the same. I’m not aware of any documented evidence of long term problems resulting from use of methylphenidate (though presumably massively excessive doses could cause harm similar to caffeine). Ritalin is not meth.
Are you saying Ritalin is not meth but caffeine is?
I’ve seen profound addiction to a number of the prescribed stimulants. Stimulants by mouth are not absorbed as quickly as smoking or injecting meth but the physiological response is similar. It’s basically the same as the old argument that power cocaine was not addictive while crack cocaine is. Both are addictive and can cause harm. Crack is more likely to cause addiction because it’s rapid uptake affects the pleasure centers more than the same cocaine does when taken up slowly. But we have seen over the years that powder cocaine is addictive and can be destructive to the user.
I still don’t understand your concern about caffeine. It is safer than aspirin, minimally addictive, and has proven over the years to be a very safe substance.
BTW, this was the first listing for google search “Ritalin deaths”
“Between 1990 and 2000 there were 186 deaths from methylphenidate reported to the FDA MedWatch program, a voluntary reporting scheme, the numbers of which represent no more than 10 to 20% of the actual incidence. “