I could be wrong, but I'm pretty sure he's referring to the capitalists here. People who never work a day in their lives because they have a piece of paper saying they own something. Because that was the situation at the time. Disabled people already had to find work or starve. The only people who could chose to keep themselves idle were capitalists.

Right wingers misinterpret Lenin and think he was advocating for kicking the "welfare queens" off the dole, but at the time socialism emerged there was no dole nor a welfare state to speak of. This interpretation doesn't make any sense in the context. It's like a Michael Brooks "Rightwing Nelson Mandela" bit where Lenin is saying the Tzarist regime not being mean enough to the orphans.

I agree that this rhetoric isn't ideal for today's problems though.