Well, you can nitpick my comment, pick outliers and twist my words (I never said I justify age discrimination - I merely said it is a fact of life) but readers here are smarter than that :)
You do not need to explicitly say that you support a given position to be able to make a statement that supports a given position.
The statement - "there are a lot of slackers and you guessed it, they're usually (emphasis on "usually", stop trolling) older, paper pushers" - clearly, in the plain meaning of the words, supports age discrimination without requiring any further clarification on your part, and does so even if you did not mean it to.
The statement - "there are a lot of slackers and you guessed it, they're usually (emphasis on "usually", stop trolling) older, paper pushers" - clearly, in the plain meaning of the words, supports age discrimination without requiring any further clarification on your part, and does so even if you did not mean it to.