Slowly, the special days I knew as a kid are disappearing and/or changing. Is this bad? I don't know whether's its bad or not, but at a minimum it's different and we all have problems with change.
Is it political correctness? Maybe, probably, who really knows for sure? If we are having a "friendship day" instead of Valentines Day in an effort to sooth hurt feelings, well that's a laudable goal, it's even a worthy goal, but it's not going to change anything and it could make matters worse.
Lets face it, not all of arrive on the planet with all of the marbles. Some us are better looking, others smarter, others better athletes, etc. Some are born with host of good qualities while others aren't. Still others are born into wealth, but others are born poor.
There are many things about life that simply don't seem fair. Changing the focus of a holiday isn't likely to change things appreciably. As to making matters worse. Yes, we should do everything we can to build esteem, particulary in children. But, esteem by itself may not get someone very far once they get out of school and are faced with the real world.
Encouraging each other is the right thing to do, but if it's done falsely just so people feel good about themselves then a myth is being created that may not have any basis in truth. For example, letting a child believe that they are really good at something when they are really in fact just average or worse potentially sets up a whole host of problems.
I believe our collective efforts to build esteem are going to cause serious problems for those who believe the lie, but still have to fend for themselves in the real world. (For the record, I wish the world wasn't the way it is. I wish those that are smarter, better looking, more athletic, etc. would realize that they had absolutely nothing to do with getting their wonderful gifts. I wish those born into weatlh and priviledge would realize that they had absolutly nothing to do with their lot in life. But, as a realist I have to look around me and accept the truth of what I see for it has always been this way and it is very likely going to stay this way.)