98EXeb, I know this is going to sound silly, but do the handle work normally for a few times right after you disengage the child locks and then you start having issues? If you look at the child lock switch, every time you move the handle, the button will walk a little bit. After a few times, it will engage the child lock by itself. The solution, pull the eraser out of a pencil and put it in the gap where the switch will want to go.
As for removing the child lock switch, I would not do that as it will make this condition even worse since there will be nothing to provide drag. If you do remove the switch, you will need to find a way to hold the lever at the latch down so it can not move on you.