@yankel-berel
don’t worry. i’m still here.
i’m trying to take your question honestly. it took me a while to figure out what i think your kasha is. and now i’m trying to find any meforshim that have the same hava amina as you. I haven’t found anything yet that even addresses the point, so i’m not sure how to respond.
I believe we can both agree on the following:
If there is an imminent threat to the life of a jew, one is allowed to stop the murderer, even in galus.
That is also allowed on shabbos, because of p/n.
One is not allowed to organize an army and fight a ruling non-jewish king, as that breaks the 3 shavuos.
This section of SA says the above regarding shabbos very clearly, making a distinction between saving money and lives.
There is an additional line about a yiddish border settlement in a yiddish kingdom (a safir), which is a quote from a braisa that rashi explains as such.
So, I guess your kasha is that this braisa is talking about a yiddish kingdom in galus? or that jews are supposed to be mechalel shabbos to protect a non-jewish kindom (and not like rashi? explains the words).
So, I don’t really understand how you are learning the above, but I’m trying to find anyone who explains it as above.
The way I read this, since its the language word for word of the braisa as quoted exactly like this in the Tir as well as the Rambam, it is very hard to say that those authors meant any other meaning or application outside the specific application as is explained in Rashi that it’s not relevant in galus but is meant to be an added nuance to hilchos shabbos. However, I haven’t found any practical use of this line in SA in rishonim or achronim, so I I’m not sure what novel halacho it is meant to bring in SA.
In any case, if you somehow get past the meaning of the braisa and remove the word “safir” and apply it to the time of galus even when not an edge city to a kingdom, your argument against me would then seem to be that if a rebel gang of non-jews is an imminent threat to murdering a jew you can fight back whereas I quoted the chofetz chaim ztz”l (in lekutei torah on the parsha) that learns from yaakov about how we respond in galus. If we come to that generous point of the conversation, I would certainly admit that the distinction between a single rebelious non-jew attacking and a group of three rebellious non-jews attacking is not well made anywhere, and you perhaps could ask your kasha on the chufetz chaim on where exactly the red line falls. Again, I don’t think this SA is where THAT question would come from.
If you do know any classic meforshim that do address your understanding and certainly if I misunderstood you completely, please let me know. I was hesitant to write as much as I did here, since I don’t like saying anything from my own understanding, but you seemed eager to learn the sugya and wanted an answer, while meaningful source poskim are lacking in addressing your question.