I feel some... prejudice over that first part. 
Whether not they are "whiny babies" is up for interpretation, So I can't agree with that. But it is true that facing reality is not their strong point.

And that's how people get in trouble and fights start. Automatically assuming some prejudice or biased on some level makes it really hard to give an honest opinion without someone accusing you of something that isn't.
Shall I put this in a better way?
We have known 4 major Uchiha in this manga. Madara, Obito, Itachi, and Sasuke.
The 2nd says that the the Uchiha love was greater than the Senju. This is hard to believe because how can one love be greater than another? How can a brotherly love in the Uchiha clan be more powerful than another other love in the world. Love is Love. There is no numerical value to it. What really is greater in the Uchiha is there fear, not love. The fear of losing everything they care about, but after so many years don't you think they should have accepted that life happens in such a way? That's what's weird bout this world. The biggest problem is not pain, but the inability to accept it. The inability to accept that bad things happen.
That's why I call them whiny. They can't accept lose at all or at least according to the second. Not only that, but most of the clan supposedly couldn't accept this? Is that right?
This chapter basically says that "Uchiha are emo." We used to joke about it, but this chapter literally says "The Uchiha are an emo clan." They are hyper sensitive to emotions especially negative ones? It's not even an individual basis, but rather an almost "genetic" reason why the Uchiha are the way they are. Does this excuse all the actions all the bad Uchiha have done? And how does this explain all the good ones and why they didn't turn?
I mean, can't this really happen to anyone? Can't anyone become evil from lose? Naruto struggled with his own hatred and pain. Along with Nagato. This even says to me "Well, it just seems like the Uchiha gave up too easily."
I don't know, something doesn't seem right about this. Perhaps it is a translation error or something in one of the sentences.
And here is another kicker, some claim this supports the pairing wars or something, but if anything this goes against it. If Love is such a weakness to an Uchiha then Sasuke shouldn't love at all for fear of becoming a tyrant. Unless Sasuke wants that power anyway, but then he would have to love someone, but so far he has not, yet still gains powers all because he has love for his brother which is apparently stronger than the love of a lover.
It's a circular logic. Love brings them lose which the Uchiha can't accept, but instead of learning to accept lose they just deny love? That seems counter intuitive.
It makes sense, don't get me wrong, I understand it quite well. What I don't understand is if this was known all this time, why not do something about it? Give them therapy or something. Drugs maybe? Some anti-depressants or something could work. There has to have been something, but all anyone ever did was try to cover up the problem rather than trying to solve it.
This really is almost like word for word Star Wars with literally Sasuke being Anakin Skywalker who became so afraid of lose that the fear itself brought misery and caused the problems. Some people say that was seen all along throughout the manga. While yes it has, but in truth everyone goes through what the Uchiha do. The difference being that the Senju have accepted lose and the world itself.
It's weird that the Uchiha have gone for generations fearing lose even though lose is apart of life. It is a fundamental. With love there is hatred, with gain there is lose. Again, life is balance. To deny it is to deny life itself.
But whatever works, works I guess.
Next thing you know, the Uzumaki clan are said to be the same way with the exception that their powers only get stronger the more love they have and never weaken with the pain of lose due to some chakra levels in the brain.
It's funny, it's almost as if the more love the Uchiha have the weaker they are. The pain of not having it makes them stronger.