A debate in Parliament would not be a waste of time. The very significant problems could be discussed, the bill adjusted to mitigate the worst consequences, and new evidence on already-observed impacts and extrapolated consequences considered in order to make an evidence-based decision on whether it should go ahead or not.
Unless of course the government doesn't care what arguments there are against it, doesn't care whether it will raise money, and doesn't care about the serious consequences. And instead just want the self-righteous feel-good of punishing a small group of people they hate.
Which certainly isn't how a parliamentary democracy is meant to work.
So what do you think: is the UK a functioning parliamentary democracy - open to parliamentary debate and discussion in order to make the best possible laws?
Even if they don’t change their minds, it's still not a waste of time, because the arguments will then be in Hansard and they won't be able to deny that the harms were foreseen and they were warned. Hmm.. wonder why they might not want that?