Political correctness is like a tsunami in that no one understands the extent of its danger until after the massive wave sweeps across the land and then recedes.
Early on, in the first term of the Obama administration, we felt the rumblings of the earthquake that always precedes the storm, when President Obama set the tone for how he expected sensitive issues to be handled. It wasn't long before the Global War on Terror was renamed "Overseas Contingency Operation." The Department of Homeland Security (DHS) quickly followed suit when it redefined terrorist attacks as "man caused disasters." A case of trickle-down idiocy, I suppose, considering that changing a name only makes for a temporary fix.
I learned that lesson as a kid, having been blessed with two sets of teeth, requiring a number of dentist visits to remove the stubborn baby ones. After the first disastrous visit (for all parties involved) because I kicked the dentist when he gave me a shot, my mom decided to change the name "dentist office" to "ice cream stand" to get me in the car. It worked once, just up until our car pulled into the dentist office parking lot rather than the ice cream stand. Fool me once...
That night, my parents had a grownup conversation with me, (at me, really) explaining it was going to be unpleasant, but had to be done. To their credit, I have a decent smile today, but still get a weird feeling inside when I see an ice cream stand. Although I didn't realize it then, that experience taught me a valuable lesson about political correctness, in that switching labels doesn't change traits.
Currently, there is a strong push by the left to change America into the opposite of everything that makes this country exceptional. They are using political correctness to get there by relabeling things once considered honorable and wholesome as inappropriate, and things once considered immoral as good. What they do not realize is they are trapping themselves in the process. Exchanging God-endowed freedoms for man-made rules is never a fair trade.
This was recently on display in a smaller, but still toxic, military reservist sensitivity training workshop in Pennsylvania that would make Bill Maher proud (here) when the person in charge listed Jews, Catholics, and Christians as religious extremists alongside al Qaeda and the KKK. As you can see, inclusivity is not always a good thing.