This analogy only works if the toddler buys their own lego and, while assembling it, the neighbour's toddler - whose parents can't afford to buy lego - chokes to death.
It is possible to build things that don't hurt people.
It is possible to reduce the harms of things that are likely to hurt people.
It is possible to not treat hurt as a foregone conclusion.
It is possible not to use this foregone conclusion to defend strangers who not only create things that actively harm people, but promote this harm as a good thing, without also providing the support to reduce or avoid those harms.
It is possible to build things that don't hurt people.
It is possible to reduce the harms of things that are likely to hurt people.
It is possible to not treat hurt as a foregone conclusion.
It is possible not to use this foregone conclusion to defend strangers who not only create things that actively harm people, but promote this harm as a good thing, without also providing the support to reduce or avoid those harms.