Well it's not "my" anecdote, lol. As you found out in the link you posted, it is supported by several studies.
If you think you drove safer when you were drunk, then you're crazy. And several studies support this, with none that I am aware of disputing it.
When you say people are getting "high" that can mean a lot of things. Some of those things can hurt your ability to drive, but not all of them. Yes, smoking marijuana makes you "high" and I am not arguing that. But it is not the same "high" as drinking alcohol, not the same high as smoking crack, not the same high as shooting up heroin, not the same high as taking acid, etc. And of course, none of those are the same "high" you get from a cup of coffee, a cigarette, a Viagra, and so on.
Like I said, just because you are technically impaired in some fashion doesn't mean your ability to drive is impaired. Several studies have said marijuana does not hurt the ability to drive. Most people who have smoked the stuff will also say it doesn't hurt the ability to drive (myself included). There is very little (if any) evidence that says it does make driving dangerous (or impairs the senses to the point that it could hurt or kill someone else, as you said). Generalizing words like "impair" or "high" to try to make it seem worse doesn't prove anything. Yes, some people who are "high" will be more dangerous, but not all people who are "high" will be. Marijuana is on the lower end of the "high scale" and it doesn't really hurt the ability to drive, as several studies have determined.
Weed and alcohol are totally different highs bro. I don't know if you have ever smoked weed or not, but it's totally different. Alcohol absolutely does impair the ability to drive, no question about that. I doubt there has ever been a study that found otherwise. But marijuana is totally different. It doesn't affect you the same way alcohol does. You don't lose coordination, balance, etc. All it does is calm you down. It's like a coffee, but the opposite.