Have you even tried what I suggested in one of your earlier threads on this?
many shops when faced with a problem like yours will just automatically break out a box knife and destroy the gasket to ensure no damage to the glass. That is a very expensive gasket to replace. Pushing out the windshield with the gasket is possible but have you ever done that before? I believe the current situation makes it easier to find replacement glass than a correct replacement gasket
good luck
Larry