Crying "whataboutism" isn't a rhetorical shortcut to dismiss a reasonable argument. It's hypocritical and silly to allow alcohol and not other recreational drugs with similar safety profiles. It's also untenable to completely restrict alcohol.
Psychedelics never made me black out, piss on the floor/all over the room, never made me want to assault someone, or made me act like an asshole, but alcohol on the other hand....
Imagine this- you hear something behind you (a real sound), and for a moment you are startled, thinking someone else is in the room. You soon realize that this isn't the case.
Someone on hallucinogens might take a moment longer to realize that there is nobody there. They imagine the intruder a little more vividly, their heart rate goes up a bit more. But just for a moment.
In contrast, if there actually is someone there, a drunk person might not realize it. Their senses are dulled. Instead of seeing things that aren't there, they fail to notice things that are there. It's the opposite.
To engage in dangerous behavior? Hardly.
That said, alcohol is a lot more predictable in its effects for a given dosage. And also the dosages are a lot more reliable. There's a reason it's perceived "not as bad" as hallucinogenic drugs.