I feel like taxing proprietary software, or making it illegal would be awful. Many companies big to small run businesses off of proprietary software. You have the big players like Microsoft, Apple, Amazon, and Facebook. Not sure how some of these compare in size, but you also have Github, Shopify, Squarespace, Reddit, Atlassian, Basecamp, robo advisor companies. Then you consider not purely based online companies like banks or retail stores that sell their products online, or give you the ability to trade ETFs. Some of those they could use open stuff instead, as they make money off of trades.
I do agree that making DRM is a losing battle, and they are transferring that cost to legitimate customers. Really though I don't have much other options for streaming. Amazon prime has the same setup, and CraveTV probably does too. Though Crave doesn't have much for content that I'm interested in.