Sarrecenia are the plants I think you are referring too
I could do with a little more info about how they were cut down? The plants themselves go dormant in winter, the pitchers will die off and you will be left with a bulb in the ground.
As long as the ground hasn't been too disturbed they should be growing next year fine.
That is so cool to have them growing wild near you, so much of their habitat has been destroyed completely for housing etc, try and protect the area if you can, if there are other people angry about the damage hopefully you can organise some kind of government protection for them