practically

Does anyone have any good techniques for removing the snaps out of the female part of the snap? These things are really stuck every single one of them!! I'm practically destroying the first one i'm trying to get out with pliers.

I'm changing out all the wheel bearings on my Murray Track 2, and the rear bearing seat on the sprocket side is warped. When I tapped the bearing, it practically fell out. Any suggestions on how to fix that?