Totally agree! We have this discussion a lot around here. For one, why mental unwellness is still so stigmatized. If someone has an upset stomach, everyone feels sorry for them.
If the same person has an upset mind, nobody wants to know about it.

I have a feeling that the non-acceptance is part of our new society of being shown happy, happy wherever you look.

While it is true that people always kept up the facade, I think the bombardment with fake happiness (FB, Instagram, even Steem) hasn't been that constant. The "odd" person was very much part of society as was the grandma sighing all day.
On top, we have the New Age teachings that we are responsible for our own happiness and if we aren't happy, we are failures - that make it hard to be real.
don't get me wrong, I do like a lot of the New Ageism, and I do think that we have a lot of control about how we feel in general - like food, exercise, the people and things we surround ourselves with - but we aren't 100% in control.
Embrace the dark times - they often give birth to the next great thing... At least that is what I am trying to do...