Yes, it's true that many parents have children for reasons such as providing a loving home and creating a family, and these motives should be respected. However, it's also true that parents often pressure the childless to procreate and this has unfortunately become the norm in many societies. It doesn't matter if the parents have valid reasons for having children; their many social pressures are still perpetuating a cycle of unnecessary parenthood.
Furthermore, it is inaccurate to suggest that parents are able to juggle their social life and parental duties. Parenting involves many sacrifices and while some people may be able to balance both identities, this is not the case for many. It's true that every experience is different and that parenthood may not be right for everyone, but Nikhil's point was that people should not become parents out of social expectation or pressure.
It is not UrRong to suggest that parents are not spreading false information about parenthood or "making things up" in order to justify their decisions - they may simply be unintentionally perpetuating a cycle of misinformed parenthood by pressuring the childless. This is not to say that all parents are regretful or unaware of the challenges associated with raising children, but rather that some may have overlooked important matters before having children.
Finally, it cannot be said for certain that parents are doing the world a disservice by having children. Instead, everyone should make informed decisions about whether or not to have children lest they end up with wrongful regret.