I am currently exploring/working on this as a cause of my internal anger, which comes out unskillfully and destroys me inside.
I see it in the way my mother babysits my nephews. If they cry, diversion tactics (generally food). When they get mad, "Oh you're just being cranky." Nothing is explored to any depth other than subversion.
I believe the source is what, from a dialectic therapy standpoint, is called an "invalidating environment".
I have had luck with questioning those who raise "invalidating" remarks upon speaking to them. "What makes you say that?" or "Why would you believe that?" is what I say w/o any inflections. It helps them see how they have nothing to stand on, just like me.