What other response than "we will find them and kill them one by one" can be given by democracies? Democracies cannot back down because of terrorists. I honestl

What other response than "we will find them and kill them one by one" can be given by democracies? Democracies cannot back down because of terrorists. I honestly think that, by design, terrorism cannot win against western democracies. I wonder if terrorists understand that. People will be afraid, people may be scared, but at the end, governments will not yield. And to be clear, I'm not saying politicians are brave or whatever, it's just because of how democracies work.