He could have said "Being gay is no more or less a crime than having a shy, retiring nature". The meaning would have been the same and his next sentence would equally have applied. He said "What can be argued...", it can be argued, and is argued frequently.
I'm afraid you are missing the point Brownie.
It will only ever be put against a negative. That's the way that poster works. Years of experience believe me.
In the past gay people have been metioned in the same sentence as murderers, child molestors, thieves, - well I guess you get the point. But never in the same breath as law abiding citizen working in an ordinary job. Or indeed that excellent local parish priest who just happens to be a little bit lavendar.
No he'll always go for the negative.
The poster is full of hate not hope.