"Actively hunting" is not the appropriate defence against undermining. If you want to defend against undermining you do so with supporting your own group, or undermining theirs.
Apparently you're not coz you still want to SHOOT them out of defence for your faction when you claim you understand that it has no such effect.
It doesn't make any difference if they do it in solo or open coz your defence is NOT to shoot them, it's to also do missions.
You are just not referreing to that deterrence agrument - I guess because there is nothing you can say against it.
I said in the lines you quoted, that of course we would still do missions o0 I am aware of that, so telling me thgis for the 3rd time, is not necessary. Thanks.