This is a view that reduces humanity to ants, or bots, or Borg. Especially divorced from any particular ideology or necessity, what you are advocating is the treatment of individuals as disposable units, directed to die by a faceless and unaccountable power structure. That was the case with the Kamikaze, and it's the case with jihadis now. Interestingly, it only seems to happen in the service of totalitarian ideologies. Revolutionaries who advocate for human rights or democracy don't tend to obliterate themselves. They want to be around to take care of their families.

In short, your view doesn't just prioritize the group over the individual - it prioritizes the worst possible groups.