Does Nobody Have Any Class Anymore?

O.k., so I was riding the subway back after having dinner in the city with one of the most beautiful girls I've ever laid eyes on. I'm contented, after a few glasses of wine, to sit on the 4 train until it reached my final stop at bumfuck "way farther north than anything cool happens" in the Bronx. There was a couple sitting across from me, and I won't mention their race, because it has nothing to do with my point. They were cuddling.
Objection 1) PDA.
I am of the opinion that publicly displaying your affection means either you lack the means to ensure that such actions are private, or the class to, I don't know, erect a tent?
Most of you cretins are, I'm sure, still giggling at the word erect. Don't worry, I had a laugh or two myself.
If Objection 1 were my only problem with the situation, I could probably be dismissed as an uptight prick. And admittedly, if that was the case, I might be. The problem is much greater than that though, because of my second objection to their behavior.
The female of the couple took out some nail-clippers, and began to clip the gentleman's fingernails...on the train....across from me.
Lets make it formal, shall we?
OBJECTION #2: PUBLIC NAIL CLIPPING
I was taught, from a young age, that clipping ones nails was an activity to be conducted only over a trash can. This makes sense, as you don't want to be treading all over shed human cells, since that is just gross. What was assumed during my youth, though, is that I would be clipping my own nails and that it would be in the privacy of my own house.
So, these two blew my mind.
Not only was the gentleman content to display his public grooming habits to the world, but the lady was more than obliging to trim him up, and cast the remnants all over the floor of the train.
Yes, it is New York City. I'm sure at some point, someone who was lacking in options relieved themselves in the very train car i was sitting in. And, you know what? That's ok. It only mildly smells like piss now, and the two bucks was cheaper than a cab. The old saying of beggars and choosers. But, couple sitting across from me, you are moderately well dressed. Your shoes are fairly new. I assume you are going somewhere on this train. (Probably to attempt to procreate, God knows it's easy enough) What in the hell makes you think its alright to trim your nails on the train? Who raised you? Honestly, I want to know. They deserve to be bitch slapped.

If anyone reads this continually, they may notice a recurring theme. Namely, the fact that class has become an alien concept to the majority of the people I'm stuck on this planet with. No no, not class as in the amount of money one makes. Class as in dignity, modesty, and politeness simply for the sake of compassion for your common man.
We seem to have lost it, and frankly, some of you people just disgust me.