I stand by both those quotes, but I don't see how that equates to "since you seem hell bent on blaming single parents for the issues of society". You've lost any nuance by converting "one of the key problems" (which is born out by the evidence), into an exclusive cause, especially one inferring that I blame the abandoned partner and children.
Clearly there are many problems that influence the break up of families (poverty through lack of work, alcohol and drug problems, mental health caused by both) one of which is a lack of seriousness about the institution of marriage and the ease with which it is dispensed with. To say well you know, some men are violent and abusive is to misrepresent the motives of those who just get cheesed off with the drudgery or fancy something tastier. I read somewhere last week that divorce rates in the US are nearer one in two than one in three, which suggest the screw it tendency is more prevalent than the abuser from whom any family should rightly flee. I'm not suggesting dreadful things don't happen in families, I'm saying there's a better way of conducting society (including marriage) than the one we're currently overseeing.