so you're saying he's bourgeoisie. Yeah that's the irony. The irony is that he's rich enough to have that lifestyle and still have food, while poor people would not.
Nope, according to the wikipedia linked, the only time Lafargue came close to being an owner (i.e. petit bourgeois) was when he tried running that photolithography workshop.
You are trying very hard not to think out of your box.
First Lafargue was by no means rich nor a capitalist.
Then this is not about promoting a "lifestyle", it is basically a proposal to have everyone work less by sharing the workload. Think of it what you will but do not misrepresent it.
I suggest you actually read the book.