Calmly tell your carry that this is a dead lost lane and he will have to jungle. If he replies with, “stfu” or something similarly toxic then mute him. Ofc you should pull and try to leave the lane as late as possible. Then go gank mid or top, or make ancient stacks. Never waste your time struggling in a lost lane. Go gank other lanes instead and try to make space for your team. Moreover, losing your safe lane tower early is not the end of the world by any means, hell, its over better to let it fall cause the lane is pushed to tier 2 and the carry can safely farm it.