In my opinion, laziness is not a character flaw, it's rather a fundamental characteristic of any living being. Therefore saying that you're lazy is tautological

In my opinion, laziness is not a character flaw, it's rather a fundamental characteristic of any living being. Therefore saying that you're lazy is tautological, obviously true therefore not worth pointing out, and not a reasoning for a perceived difference between you and others, because they're all lazy in their heart, too.