This is quite an interesting perspective to me, since I do have the longing for meaning in life. I think viewing life as a random walk through experiences can help to not stress too much about it.
However I don't feel guilt for having a child and I also find it hard to understand reasons why one would / should feel guilt for it (given you do a decent job at parenting).
Given that pregnancy can also happen if not explicitly whished / planned for, I'd also view parenthood as part of the more or less random experiences you get in life.
I think this is a topic where I just have a very different viewpoint, but find it fascinating to read your thoughts on the matter.