i've pointed this out a few times, now.
it is true that if any specific country in the western alliance were to stop arms shipments to the saudis, then another would pick it up. but, that is what every country in the western alliance says.
we claim there's no point in pulling out, because the americans would get the contracts. and, the americans claim the germans would get the contract. and, the germans claim the french would get the contract. .... . & this is all true enough.
but, if we're all saying the same thing to each other, maybe there's actually enough of a confluence of opinion here that a boycott should be being discussed.
i think that the evidence is fairly clear: arming the saudis right now is something roughly equivalent to arming hitler in the 30s, which is something that the west did, too - at tremendous consequence to itself.
a total arms boycott on the saudis is something that nato should be seriously considering.
so, they'll buy from the russians, then?
well, let them make that choice, if they so choose - i might suggest it would not be in their interests.