Most feel that the backbone of communications infrastructure is not something the government should have full control over. There is a fair amount of support for price-controlled or subsidised internet, but there is a fair amount of paranoia regarding full control and what another snoopers charter could mean in that case
It's not like the goverment didn't lay the whole phone network across the UK and agencies are sucking all data regardless. I doubt it would make one bit of difference since all companies have to comply with the law anyway and if you are that paranoid, I'm sure there will be ISPs to choose from. It's not like they are owning BT or anything, they just want openreach to lay fiber everywhere and offer free broadband, companies will piss and moan whatever happens, goverment is making us delivery fiber everywhere, boooo!, goverement is laying the fiber themselves, booooo! They fucked up over the last 40 years, step aside. Sure, it won't be without issues, I somehow doubt the cost will be the figure they supported and good luck getting companies to pay that covers upkeep etc. but hey if there is a middleground and all you have to pay is a cheap line rental fee, better than now if the whole country gets fibre cheaply
Depressing to think, but if Labour do somehow get in and get some plans going, the Tories are just going to privatise it all over again aren't they, after we all pay for it. Tories should be rooting for a Labour goverment, lol.