Not sure I would go that far. Completely removing a right to strike I don't think is necessary. What I do think is necessary is making it law that contracts can not include salary increases unless there is a balanced budget. I would make it illegal to force a deficit to pay for a wage increase in the public service. If times are good then everybody benefits. If times are bad then the PS also shares in the hardships and realities. Working for the PS should not insulate anybody from economic realities. Passing on massive debt to our children is wrong.
And trust me, I have a kid in teacher's college so getting rid of deadwood in that industry has more than a little appeal to me. What I would like to see is to make retired teachers not be allowed to return as subs unless all unemployed teacher grads are offered the gigs first.