edit: Furthermore, you speak as if the author is criticizing floats, but he is not. He is criticizing the attitude that tables are to be avoided for layout at all costs, when there simply is not a simple, implemented, cross browser way to replace them. Floats are simple the closest thing we can practically use, so he uses them for comparison.
I don't understand what you're disagreeing with.
> Floats are simple the closest thing we can practically use
Furthermore, I did not define the "available subset" as floats. I'm saying that floats are the best available tool in that available subset for implementing table-like behavior. And yeah, they suck for that purpose, but _there is no better alternative_.
If you still don't understand that, then I'm afraid there's no use in continuing this discussion.