At this point, the strategy is a complete success. It starts small, prevails, then people buy into the notion as a fait accomplis.
Then start arguing the seeded arguments.
All this is of such an issue, because they need the revenue. The activity is purely plausible deniability.
Some time back, politicos realised that people didn't want high levels of direct taxation, so they devised means by which to hide it in plain sight - and / or be one of the political parties that liked to claim to be about low taxation.
Do it for long enough, and the public, all Stockholm-syndromed-up would start making their arguments for them.
Take away all the dogma and tradition, then ponder this - across the piece, what is the most equitable means of raising taxation from the public? And bearing in mind, all the supposed rationales for why some things / activities are heavily / punitively taxed is nothing to do with the impact of the activity, and all to do with being able to generate as much revenue from it in a sustainable and attainable manner.