>In general I am of the opinion that fostering competition results in the best internet.
I wholeheartedly agree.
That said, I posit that municipal broadband, implemented as wired infrastructure to the premise, fosters competition rather than limits it.
IIUC, most planned/completed municipal broadband networks only provide last-mile connectivity, while internet connectivity is (or will be) provided by private ISPs.
This definitely fosters competition because a broader set of ISPs can service these customers since they don't actually have to run wires to each premise, rather they just need internet uplinks from the municipal broadband interchanges.
What's more, we can even have private or quasi-public[0] businesses/entities using ISP connection fees to manage and maintain the last-mile infrastructure. Quite possibly with a surplus for upgrades/support for other municipal programs.
That leads to more competition and not less.
I suppose it's possible that my analysis is flawed, but I'm not seeing how. If I missed/glossed over some stuff, I'd appreciate being corrected.
[0] Such as the Triborough Bridge and Tunnel Authority (https://en.wikipedia.org/wiki/MTA_Bridges_and_Tunnels )
Edit: Added cited reference.