Every generation whines about "kids these days" eventually. The kids of today are no worse than the kids of 15, 25, 50 years ago. The girl in the video is only 22 years old and older folks were/are saying the same shyt about her generation. I'm a few years older and I can remember more than a few bad ass little kids in my kindergarten and 1st grade class, hell even pre-K. Folks need to stop lying and acting like their era was perfect.
As far as the post goes, the issues in the video aren't "gentle parenting" to begin with. Not instilling values such as respect for adults among your children is simply neglect, and disrespectful kids have always existed. Those aren't "gentle" parents, just shytty ones.
And the term "gentle parenting" is stupid in of itself. Not beating the shyt out of your kids doesn't make you gentle any more than not hitting and abusing women makes a man a "nice guy".