I'm Against it

I watched the movie Horse Feathers and now I can't get this song out of my head...

Whatever It Is, I'm Against It

By Harry Ruby (music) and Bert Kalmar (lyrics)
Sung by Groucho Marx in Horse Feathers

I don't know what they have to say,
It makes no difference anyway --
Whatever it is, I'm against it!
No matter what it is or who commenced it,
I'm against it.

Your proposition may be good
But let's have one thing understood --
Whatever it is, I'm against it!
And even when you've changed it or condensed it,
I'm against it.

I'm opposed to it --
On general principles I'm opposed to it!

Chorus: He's opposed to it!
In fact, in word, in deed,
He's opposed to it!

For months before my son was born,
I used to yell from night till morn,
Whatever it is, I'm against it!
And I've kept yelling since I commenced it,
I'm against it!