It depends on your perspective. The extant reality is that we are all alone, although we perform incredible feats of mental gymnastics to convince ourselves otherwise.
OP has decided to simply rip off the band-aid, and accept reality. This is very painful in the short term, but incredible fulfilling in the long-term.
Human existence is individual existence. Human survival is group survival, but that is another matter entirely. Presently, our societies are not structured to incentivize survival (quite the opposite, in fact). The dissatisfaction expressed in this discussion is a result of this dissonance. However, individuals can rarely alter the behavior of society, and as such, investing one's energies in this direction is often destructive. This iteration of society will cease to exist, and the society which survives it will by necessity value relationships and fecundity. However, societies can stay unhealthy far longer than individuals can remain sane. Therefore, it is best to accept solitude, and be pleasantly surprised, than to dread it and suffer.