Completely disagree with TikTok's post actually and feel it is emotional blackmail.
My experience of babies and small children says that they'll be capable of sleeping through at different times and they'll wake for different reasons and needing different responses. Some will feel upset and need a cuddle, some will want milk, some just don't like their beds and want to get up. If your baby is the last kind then going in to give them attention of any kind eventually leads to them waking more and more and being tired and bad tempered in the day. The kind that want milk can be given milk or taught to drink milk in the day and the ones that want a cuddle can be given a cuddle without the milk.
Teaching a baby to feed in the day rather than the night is not in itself ignoring their needs as they will not miss out on the affection or milk, they'll just have it in the day instead. It is teaching them that the daytime is for wakefulness and the night for sleeping.
The comparison to a partner is hardly the same - a partner is a partner and not a dependant. Last time I checked DH did not drink coke/tea/wine e.t.c from my breasts and I was not required to sit with him if he wanted to stay up or get up in the night or soothe him back to sleep. You have to teach a child that night is sleep time at some point and some children learn this earlier than others.
If we're insisting on comparing babies to parners - I'm not sure anybody would be pleased if their partner woke at 3am every night shouting at them to get them a cup of tea a la daddy grewal either, how many people would oblige happily, get the tea, then pour it into their helpless partner's mouth and how many would say "shut up and go back to sleep"?
Deliberately not teaching a child about night-time has no benefit at all to the child and sometimes has a negative effect because the child needs to sleep. It is difficult for the parent to cope with wakefulness over a prolonged period and if you think about it, what you are teaching them is that they are more important than anyone else and they don't need to consider anyone else's needs. Families work best when everybody is aware of everybody else's needs and is also aware that they need to consider them. This raises much nicer children too. Also, the earlier you learn something the easier it is to understand.
Stupid comment about expecting a lot of babies too. Actually much more is expected of a baby than an adult just by the nature of a baby being a baby - the pressure of and the amount of learning they need to do is immense, much more than a grown up. They take all their cues from the world around them a wakeful baby doesn't just grow out of it, they learn not to wake. One of a human's basic needs in order to function is sleep. Why you would deny your baby enough sleep to help them learn and grow I have no idea?
I'm fairly sick of listening to this assumption that wanting your child to sleep through is cruel and I don't know where it comes from. Crying it out may be cruel but that very much depend why the child is crying. If it is upset and a desire for comfort then it is cruel to deny the comfort but if it is anger and a dislike of bed then perhaps not so. You don't give toddlers attention if they are angrily shouting but you do give cuddles if they are upset.
Any one size fits all idea about parenting is going to be wrong, all children are different. You should do whatever is right for your own child and family, there is no one right way. Night feeding or teaching them about sleeping both are fine if that is genuinely what is needed.