you've done it now Nick.....how could you

I'm a blind man, i'm a blind man, now my room is cold,
When a blind man cries, Lord, he feels it from his soul.
[Link]

And that is a generalisation as absurd as the one that the OP wet his knickers about. Or are generalisations only bad when they're negative?

But hookers are not usually being sincere.

We have now sunk to a depth at which the restatement of the obvious is the first duty of intelligent men. [Orwell]

Not to me. But 'racist' indicates a negativity. If you are entirely positive about a group and don't use that to imply or state negativity about a different group you are of course not being racist.

And yes, generalisations are only bad if they are negative or have an indication of negativity for the 'out' group. As there is no deleterious effect it automatically cannot be 'bad'.

Let me just defend you here and say that suggesting that any select nationality is something or other is ludicrous unless, it is in the context of a knowingly gross generalisation.
For example, The English love their animals.

People with families can't afford to do the job....where as they tend to live in shared houses they can,if the companies paid a decent wage then they could....and you wouldn't want who??

always a Norwood boy, where ever I live.