To the first, yes, I do believe that we humans SHOULD have a right to commit suicide. It should be a right to end your own life.

We have a 'right' drink a handle of whiskey a day, up to the point we get liver disease. Same with smoking 3 packs a day of cigarettes. Same with horrendous diet. But those ways of killing yourself are "acceptable" and also legal. But they're slower.

The second, you're harming other people. That example is blatantly ridiculous, and appears just to gain an emotional response by invoking terrorism.