They probably look pretty tasty to children.

I wish we could implement your solution when it comes to war. The way to make war less deadly and terrible is to not fight wars, these guns don't fire themselves. If only life was so simple.

You may say it is a bad argument as war depends on others, not just oneself, but in many instances of death cap mushroom poisoning, the victims are not the ones who picked and prepared the mushrooms, do they deserve death too?

It was used also for criminal purposes. Sometimes people is not offered the choice to not eat it. There is also a very similar species in a different genus (Amanitopsis, if I remember correctly) that are non toxic but are practically identical.

There are a lot of cases where the people eating them were not the ones that foraged, but were fed them at a meal at someone's house. Further, there are reports of immigrants accidentally eating poisonous mushrooms in the US, Europe and Australia because the poisonous ones bear a resemblance to otherwise safe mushrooms found in their home countries.

Finally, you have to a be a little cold to think someone deserves death because they ate something unknown to them to be poisonous.