You're basically replacing the label "procrastination" with the label "laziness" without understanding anything.

Are all people who postpone a task lazy?

What constitutes laziness? Can we define laziness?

Why are people lazy? Is laziness negative? Are there positive aspects to laziness? Why did we evolve laziness?

Are people consistently lazy, or are they only lazy in some areas of their lives?

Does scrubbing a toilet with a toothbrush actually reduce laziness? Are there other methods of reducing it?

What are the effects of reducing laziness? Are there emotional or physical penalties from reducing laziness?

Answering some of these would be useful. Just saying "everyone who procrastinates is lazy" is not.