Go ahead and point out where I said your liberty should be taken away. Using the internet is not an inherent right.
I'd argue that it is, but that's beyond the scope of this topic.
No amount of personal accountability is going to fix the problem while multi-billion dollar corporations pump an addictive and harmful product into society 24/7.
Then tax them, fine them, ban them. What we shouldn't do is let them collect any more data about us using this type of legislation.
When you say "defeated", what exactly do you mean? You mean that they should cease to exist to be considered as such? If that's the case then I would say it's an unrealistic expectation.
I would say that they've been largely contained. If I remember correctly, back in the '50s almost half of the American population used to smoke. The percentage of people smoking has been consistently decreasing over the years thanks to regulation and increased taxation. Tobacco companies are definetly not as influential as they once were.