1. You have stated that any strike in which any non-combatant is killed is immoral and "not surgical enough" and
2. US Decision makers face these kinds of situations. You don't get to just wish them away because they are inconvenient to you.
Because we didn't have drone strikes available in the 1990's, yes. However, those who are planning to attack us or others in the future certainly can be stopped by drone strikes.I've noted that for you already. We don't have to be there. Those who attacked us could not have been stopped by drone strikes.