Again unalienable rights are what and who we are, what we believe, what we think, what we want, and what we do with our own persons and property that requires no participation or contribution from any other person. Because it requires participation of my neighbor, I do not have an unalienable right to pollute the air that he must breathe. I have the unalienable right to breathe. I have no unalienable right to demand that somebody else provide me with unpolluted air, but as a citizen I have the same unalienable right as everybody else to form a society that values unpolluted air, water, soil etc. and support common laws that promote that.
Yes, I am mostly fine with the above, and I am very much in favor of societies aiming for a form or organization that ensures the citizens' highest-possible quality of life, and clean air is certainly a valuable part thereof...
The problem with expecting government to ensure "quality of life" is that it's largely a subjective concern. As long as we're talking about issues where there is near universal consensus - like the desire to maintain the commons (safe, clean environment), for example - it's not a problem. But beyond the areas of widespread agreement, our ideas of what comprise the "good life" vary radically. And trying to promote one person's idea of the good life, or one group's idea of the good life, at the expense of another's isn't good government. It's far better for government to protect everyone's freedom to pursue their own vision of happiness, rather than define the vision and force everyone to comply.