Their argument is that tax payer subsidized "competition" is not true competition. Municipalities can build a network using government money and then price it

Their argument is that tax payer subsidized "competition" is not true competition. Municipalities can build a network using government money and then price it below what any competitor could deliver. Municipalities also get to regulate and tax their competitors. That's not necessarily a great argument against Municipal fiber. But I don't think municipal fiber can honestly be called promoting competition.