Sure, but the difference was he could’ve been charged for murder if, let’s say, the person he ordered to be killed was a political opponent and not a clear threat to the nation. And Congress or judges would’ve had some power to make that call before, whereas they don’t really seem to have that power anymore.
Also, strictly speaking in terms of what the founders wanted - they did not want the president to have those kinds of powers. Most of these things were really brought in during FDR’s tenure during WWII where he took a lot of power for the executive branch. And it’s a trend that’s been continuing since.
It is most likely this. OP is one of the unfortunate people that just cannot use marijuana safely due to his biology. If you have cannabinoid hyperemesis, best to stay away from weed because the constant nausea/vomiting can lead to unintentional weight loss and a lot of other physical problems that are no fun.