>And unlike bombers and tactical missile launchers, there's no ethical issues, because this saves civilians.
Tell it to sanctions against Iran which blocked acquisition of the S-400 anti-aircraft system. Stronger defense capabilities can totally change balance of power. This is why Russia is very nervous (and rightfully so) about deployment of the US air-defense systems in Europe, since strengthening of defensive capabilities over a certain threshold can transform preemptive nuclear strike against it from incredible stupidity to just a difficult decision.
Tell it to sanctions against Iran which blocked acquisition of the S-400 anti-aircraft system. Stronger defense capabilities can totally change balance of power. This is why Russia is very nervous (and rightfully so) about deployment of the US air-defense systems in Europe, since strengthening of defensive capabilities over a certain threshold can transform preemptive nuclear strike against it from incredible stupidity to just a difficult decision.