[Crazy Jetty]

Quote:

Originally Posted by thechris

Not all lanterns use constructs, at least not up to the point I read the comics. Maybe give every Red Lantern red blood puke, though.

They technically all have the ability, though, since all rings ape oan power ring technology.
Just with the red lanterns, they're so clouded by hate and rage, they can't think straight or concentrate enough to form them. Atrocitus can, and in theory, anyone who can rise above his or her ring's influence can, as well. I think Bleez was starting to snap out of it when she joined up with Guy Gardner, and headed to the outskirts. So by now she might be able to use them.
Also, in the animated series, the Reds have been toned down, and they can all use constructs in that universe, (Though they stick to simple, unimaginative things like beams and fields, much like John Stewart in JL/JLU)

But over all, I agree with you.
Constructs are not needed for everyone. Black Lanterns certainly never used them at all, and as evedent in Brightest Day, White Lanterns have an exceptionally hard time producing them.