NO. nBome and DOx chemicals (often sold as "acid") will KILL YOU if you snort them "like cocaine". Phenethylamines can easily cause heart attacks and other complications if abused in large amounts
Yes many hallucinogens are "safer", but you can overdose if you take a hundred or a thousand times the normal dose.
I said safest, not entirely harmless. 100x - 1000x of a normal dose is an absurd amount to take. Furthermore, there's no reason to snort acid. The people who did that accidentally snorted acid, they thought it was cocaine. I was talking about LSD-25 salt, not nBome. Compared to other classes of drugs, hallucinogens are safer. Try taking 100 shots of liquor and living, or doing 25x the normal dose of Heroin, or 25 pills of molly, or 25 lines of cocaine and see how you come out of it. Comparatively, 25 doses of LSD-25 would cause significantly less harm.
In 1973, a case was recorded in The Western Journal of Medicine in which eight people took massive overdoses of LSD at a party. They thought that the white powder being passed around was cocaine and snorted milligrams of it. Most of them passed out. In the hospital, they suffered from fevers, vomiting and internal bleeding. However, all of the patients recovered within 12 hours with no lasting effects.