Because having the government make the internet "fair" is good because???
For the same reasons having the government make roads open to everyone is a benefit to everyone.
The telecom companies do nothing for the consumer, their only interest is making money. Not in a free market way but in a monopolistic way.
So if they don't like content they will now make it harder for people to see it. Political, economic, religious views they don't like can be made to disappear.
Do you watch amazon or netflix? Well now they'll be able to charge you more to connect to those services. But their video streaming services won't be?
The list is endless but what we'll end up with is higher costs and lower levels of service. Not to mention the impact on access to non-PC information.