Why are older generations such snowflakes when compared to Millennials? For examples...

There are far more people in past generations that are such big snowflakes they freak out when they see people of two different races kissing. Muhfuggers skin was so thin back in the "good ol' days" that seeing a dude dress in drag triggered them...LOL!
When the movie "gone with the wind" used the word "damn" ppl were actually angry about that. I could go on and on, but why do you think that is? How come millennials are so much tougher and thick skinned than boomers or gen x?