Luxury is a hilariously vague term here. Is having a child a luxury then? Free childcare is DEFINITELY a luxury. Or is it not since eventually they will be future labor power? What about reading? Is that a luxury? Your argument is literally buying into capitalist ideology. The goal is not to beg for crumbs but change things and if we're going to change things we need to imagine a world where something like pet ownership isn't seen as a luxury just because it's unproductive but instead a human pursuit of companionship in a world we are alienated from our labor.

I mean pet ownership goes across class lines. While currently dog walkers/pet sitters are definitely a luxury for working class people, they shouldn't be.