Ok, so there are things worth putting up with the shit for, you just wish there wasn't the shit. I assume then you wouldn't agree that there is a significant relativistic element to our pleasures, that our sufferings / potential sufferings do nothing to heighten our pleasures?
You would honestly be happy to submit to be the oft philosophised 'brain in vat' - with pleasure plumbed straight into you? I'm too attached to my fabricated meanings and vague optimism for that...
well, getting my dick chopped off is not going to heigthen my pleasures. it will preclude the further possibility of sexual pleasure. but that is the world we live in, where such an event is possible and has even actually occured, and it sucks. now if you want to talk about some forms of s/m, although i've never done it before, i could imagine that some people would derive pleasure from that, especially since it is within the context of having sex which is a naturally pleasurable activity. so if someone wants to voluntary experience certain pain in an s/m context, i'm not against it, but to have pain involuntarily forced upon me, which is the ever present possibility in the type of world we live in, well that is not acceptable. unfortunately, nearly everyone has internalized the moral of the book of job in the old testament, even if you are not religious, and we can't imagine being satisfied in a world without pain and death. the only people who are greatful for suffering similarly to someone like job are religious nutjobs who hold a divine command theory of morality and are basically mindless zombies. as i've said, if they want to live in a world like that, i'm not going to demand everyone comply with my wishes to not live in a world like that. i'm willing to accept diversity, i just don't want to have anything to do with people i consider nuts, and this world is full of nutty assholes.
I can be perfectly content experiencing various forms of pleasure without pain, depression, alienation, death, etc. As for brain in a vat, for me it kind of depends on what the context is. If there was a good god, or some trustworthy alien species, that was willing to arrange such scenarios, I think there would be less reason for concern. But given the assholic history of our species, i'm skeptical of any potential "matrix" like scenarios. I think there would have to be significant changes in our species mentality before any such grand change in the nature of how we live our lives could be carried out. it is a tricky issue. nick bostrom has written about such things, including the existential risks of any such attempt to drastically alter reality. maybe the best we can do is concoct some ideal and strive to get as close as possible to it while being ever vigilant during the process in watching out for potential catastrophic consequences of our attempt to construct utopia.
But with that said, the actual brain in a vat scenario you are talking about which consists of having pleasure "pumped" into you makes it sound different then what i imagine. for example, in an ideal world i wouldn't want to just sit around having heroin jacked into my brain for all eternity. why? because i value some type of diversity of experience. i just don't want those experiences to consist of the grotesque horrors we currently experience or potentially experience. i enjoy playing baseball and basketball and part of the game consists of the possibility of losing. now this might make you feel a bit sad for a short period of time, and i think such emotions could be felt in my ideal world. it is part of what makes sports fun. but i don't want to play sports and have the thought in the back of my mind that if i accidentally foul someone in a way they interpret as me intending to hurt them that they could start a fight with me or threaten my life. this last sentence describes something i have experienced in my life and i'll tell ya, it didn't do anything to make me like playing basketball any more then i already did. in fact, it made me think twice before going to that specific court again. so, variety of emotional experience can be fine in certain contexts and doses. but our world is a house of horrors compared to what i'm describing things could and should be like for all those who choose.
As for fabricated meanings, one can give oneself meaning in the type of world i am describing. of course the type of meaning you seem to want, where there is the real possibility of being tortured or killed wouldn't exist, but i think most sane people would prefer to not take that avenue to achieve meaning in their lives. As for vague optimism, i have a vague optimism that we might meet a kick ass alien species one day, but i'm not holding my breath. i have a vague optimism some form of transhumanism could actually work and not be a catastrophe, but i'm not holding my breath for it. i expect to die with the world still significantly fucked up, but one can still hold onto ideal visions while experiencing one's pleasures in the short time we have to live.