I take a more pragmatic notion of Jesus' words about Noah. The word of God says Noah was perfect, but the word used implies a genetic state. Look what we accomplish only living 70-90 years, so if they could live to be 900 a lot of evil can be made. So I believe they were messing around with genetics, something we too are doing now. The word of God says all flesh was corrupted, meaning in
decay, ruined. Seeing what the pharmaceutical companies have done and are doing, playing with genetics, even human. Statistics say that if they had the same birth ratio we have today, by the time the flood happened, the earth would have had around 10 billion! Of them, 8 were saved. What better way to thumb one's nose at God than to mess with His creation and His "very good" creation, man. If you understand the rest of Gen 6, what happened was the fallen angels took wives and had giants. They thought they had it made. But God had other plans. They tried again and smaller giants were born. Today, who knows. All you have to do it realize what Hollywood of publishing to see it fits this idea of ruining God's creation through genetics. Look at the TV mini series
Taken, by Spielberg to have it spelled out. I came to this conclusion BEFORE the movie came out. To me it was confirmation. Then you have Katy Perry's E.T. song which says in part:
You're so hypnotizing
Could you be the devil?
Could you be an angel?
Your touch magnetizing
Feels like I am floating
Leaves my body glowing
They say, be afraid
You're not like the others
Futuristic lover
Different DNA
They don't understand you
Kiss me, kiss me
Infect me with your love and
Fill me with your poison
Take me, take me
Wanna be your victim
Ready for abduction
Boy, you're an alien
Your touch so foreign
It's supernatural
Extraterrestrial
You're so supersonic
Wanna feel your powers
Stun me with your laser
Your kiss is cosmic
Every move is magic
You're from a whole other world
A different dimension
You open my eyes
And I'm ready to go
Lead me into the light
Jude says the same thing about Sodom... they wanted "strange flesh". We quickly blame S&G for homosexual, but that's not what "strange" means, it's HETEROS not HOMO. Heteros means one not of the same nature, form, class, kind, different. But I'm sure it's easier to believe they wanted critters than demons, even though the devil has been on a mission since Gen 3:15. This isn't a crazy idea, it's the plan of the devil. He's been killing since Caine. Yes, it sounds totally bizarre, but it's in the scriptures if you look for it.
Just my 2 cents.