Do you farm your own food, generate your own electricity, or process your own sewage? There are others in society who are picking your slack in these areas. That's was the commenter meant.
Do you think mastering something is not a form of work, which usually results in advancing a field for the betterment of society? Just because one might enjoy that process more compared to maybe someone maintaing sewages, I don't see this as entitlement, but as merit and role fitness. No shade to sewage workers, I hope we all appreciate the work they do, and I hope they can have pride in what they do. Saying you don't have sympathy for anybody really losing their role in society/life is such a soulless take...