Dumb and dumber
Raising money for public infrastructure projects by tax is all well and good, if the infrastructure is public, but since the telecomms infrastructure is in private hands, it should no longer qualify for such investment.
If there is a sound commercial investment opportunity for faster broadband connections, then the private telcomms companies will have no difficulty obtaining capital in the usual way, e.g. they can borrow it or issue stock.
If they can't raise funds this way it really rather suggests that there is no demand evident. If this is the case, then seeking funding via taxation to provide the capital is simply forcing everyone to pay for something that that is neither wanted nor required, or at least not enough for people to voluntarily pay for it.
Call it rent seeking, call it theft, call it extortion, either way it's a fucking stupid distortion of an already pretty fucked up market.
And as so many other commenters have pointed out, the idea that al those extra fifty pences would find their way to some mythical utopian broadband project are slim, to say the least. The proposers of this tax know that, of course, they just hope we haven't noticed so that they can sneak an extra revenue stream under the guise of some trendy e-society wankfest.
Watch out for the first fuckwit to suggest that opposing this is akin to denying our children the opportunity of an education or to putting the poor in ovens, I've no doubt that they can get the race card in there somewhere as well, but I can't bring myself to imagine how.