Yes because we all can afford to move abroad and not try to improve material conditions. Also, not trying in first world countries will just give governments like the US and UK more leeway to oppress AES and third world countries. BE isn’t even apart of an org either.
some really important praxis has been done in the imperial core (Britain) against arms industries arming israel, and that's just recently.
historically imperial core activists had a huge hand in sabotaging the rightist intervention in the Russian Civil War, and for the pro-USSR wartime policy decisions in WW2. y'all think France and Britain didn't go into Finland against the Soviets purely because of "strategic considerations" and libshit? or were they worried about massive fucking strikes? fuck would the US have given up in Vietnam or Korea when they did without the antiwar movements?