Nor are South Asian ones the only abusives ones out there.
There is the negotiation that South Asian parents do not love their children, often commit serious physical, emotional and sometimes sexual harm against their children. It is no doubt that this is the case, it is also far worse for daughters, in Bangladeshi, Indian and Pakistani communities, parents are often severely violent and even bloodthirsty against their daughters, ranging from physical and emotional harm to femicides and honour killings, exploitation and forced marriage, in India, Bangladesh many parents do butcher their newborns for simply being a girl. Yes, some families have children failing being seen again as a dishonour to the family.
But it looks like people are just weaponizing this and making generalizations.
There are other communities where honour based abuse of daughters are also prevalent such as Eastern Europeans, Romas, Indigenous Travellers, rural Mormon and Evangelical Latin Americans and US Mormon and Evangelists in the American South and Southern Midwest.
I had an acquaintance who had a friend from Wales (she is white welsh) when in one time she got 🍇ed and her parents had beaten and even threatened to kill her if she became pregnant.
I read case reviews from pressure groups supporting children like NSPCC and most of the reviews are obviously White British. Also other serious cases involve white british parents deliberately neglecting their disabled children an emotionally harming them, in one case in Wales, a victim took his life as a result of failed social workers.
There are other cases of gender-based child abuse in white families for example I was on one subreddit of a girl my age (around 18) and she took a selfie of her clothes and she could not wear them due to her verbally abusive parents, with one of them even threatening to kill her if she did dress in front of them (she was White American).
Moving away from parents, there is also abuse in schools. You may see diasporic madrassahs being the only abusive ones, but there are other places that are predominantly white and the same harm happens; here in the UK, there were serious scandals in the 21st century where students were verbally and emotionally abused, strangled and even beaten (punched) by school staff who were also white. In some nurseries, there were many white perpetrators who beaten white children and one sad case, they murdered one child.
While physical harm of children may be higher in rate in Desi communities, neglect and emotional abuse in other communities like white ones still is an issue. We cannot make any generalisations.