If that's the case, throwing more people, especially juniors, into the team won't make a difference.

By the way, having a team full of people that "don't want to work" is a sign that they lack trust in the project or leadership. Maybe management should work on that rather than spouting right wing linkedinisms. :P

Then plan for that. Your deadlines and customer expectations should reflect what you're actually capable of delivering. If you can't tell customers the truth, or set deadlines, or hire motivated people... then you're not really the management.

I'm my experience, the vast majority of people want to work. They just need their task clearly stated.

Also in my experience, people who call everyone else stupid and lazy are absolutely the problem.