People forget that Marx advocated for ruthless criticisim. As a rule whenever I read something and it peeks my interest, before I keep digging further I ask myself: Where's the catch here? Are they trying to sell me something? Who can actually benefit from this.

This simple scruttiny maybe won't reveal the holes in the idea, but it will lead you to things you can research, read contra-arguments and get a fuller and rounder idea of whatever you are reading. But sadly this is a skill that is getting loss, not because people can't intellectually do it, they just do not care or want to put the effort.