It doesn't matter where the people come from.Its the capital, people will come here. Even if one person suffers among the millions, it is a shame isin't it? And this crime would not have happened if there was vigilance. Its such a small state and national capital. Security has to be full proof. Without taking any chances.
Women roam around in Delhi much beyond 7/8 PM . Living conditions ? When was the last time you checked Delhi's per cpaita income and HDI level ?
You can't use public transport after 7/8 PM though i agree.
About the rest of your rant, as someone else said , Delhi belongs to no one's daddy.Certainly not yours.
Also before declaring that delhi ahs gone to the dogs, try protecting your muslims also in Gujarat 2000 of whom were murdered in 2002.
Things need to change in India and Delhi in particular due to the neighbouring states here, but xenophobic people like you will most certainly not bring any change .
Btw, most criminals in Delhi come from its neighbouring states as migrants and aren't locals including in this case. Giving away Delhi to Pakistan won't change a thing.