You completely misunderstood. I didn't call it "extreme" to say that grandma should be allowed euthanasia. What I said is that that's an extreme example, as in, a case where extreme circumstances make euthanasia a reasonable option.

Before I used the word "extreme" I literally said, "Of course, 'grandma' in your example should be allowed to die peacefully." In fact, I even called the idea that she shouldn't be able to, "an extreme position." At that point, I can only assume it's a willful misinterpretation to dismiss criticism. There is nothing "extreme" about my position that euthanasia should be legal but only in special circumstances, it's literally the moderate position on the issue.