If you are stuck in traffic or on a bus in an ugly urban hellscape, is a billboard really that bad? I'm sorry, they are not going to plant trees in Times Square to replace the billboards. Even in their own press photos, they are showing several billboards that are covering up even uglier buildings!
Maybe you are an enlightened individual and want to put an end to consumerism and society. In the meantime I personally still buy things and shop. And billboards are a pretty unobtrusive and low-tech way of getting my intention. I still regularly learn about new restaurants or attractions or museum exhibits because of well placed billboards.
I certainly thing some billboard types and content and locations are bad (digital billboards - yuck). But that seems like an argument for good policy making from your local government rather than a blanket opposition to all forms.