I can only comment on the first few lines, because I simply can't make much of the rest (except of the obvious nazi-judaism theme).
(Let's sing another song, boys, this one has grown old and bitter.)
-- This line sounds like intimacy - like a gathering of a student fraternity. Many fraternities are known to be nationalistic or even nazis here in austria - which might be significant given the rest of the song - but I have no idea whether LC even knows about this though.
Ah his fingernails, I see they're broken,
his ships they're all on fire.
The moneylender's lovely little daughter
ah, she's eaten, she's eaten with desire.
-- This is obviously a reference to the Merchant of Venice. Antonio's ships are all out to sea, and his friend Bassano approaches him for money to woo his beloved Portia. So Antonio lends money from Shylock, the jewish moneylender. Shylock's daughter falls in love with the christian Lorenzo. We all know the rest of the sad story...

She spies him through the glasses
from the pawnshops of her wicked father.
She hails him with a microphone
that some poor singer, just like me, had to leave her.
She tempts him with a clarinet,
she waves a Nazi dagger.
She finds him lying in a heap;
she wants to be his woman.
He says, "Yes, I might go to sleep
but kindly leave, leave the future,
leave it open."
He stands where it is steep,
oh I guess he thinks that he's the very first one,
his hand upon his leather belt now
like it was the wheel of some big ocean liner.
And she will learn to touch herself so well
as all the sails burn down like paper.
And he has lit the chain
of his famous cigarillo.
Ah, they'll never, they'll never ever reach the moon,
at least not the one that we're after;
it's floating broken on the open sea, look out there, my friends,
and it carries no survivors.
But lets leave these lovers wondering
why they cannot have each other,
and let's sing another song, boys,
this one has grown old and bitter.