In the end it would just be better to have a large kill cull.
Shoot them down to smaller numbers.
Otherwise they will eat themselves out of the their home and starve.
Oh, sorry ... forgot - some loonies made that against the law - now the tax payer has to pay for their up keep.
Interference into something that managed for centuries without help from the government - now will only be able to survive with the help of the government.
Too bad - and it will not get cheaper.
Regards
BC