Probably the only way they will get taxation money out of the tech giants given all the shady things they do to transfer the profits out of countries to evade taxes. VAT at least is a lot more obvious and harder to avoid although I don’t put it past them to start doing even shadier things.
The laws of physics mean that no matter what we do with carbon capture it is never going to be cheaper and less energy to emit it and then capture it again. This is a foolish endeavour the focus should be on the green transition with Wind, Solar and Storage combined with ensuring infrastructure is there for Electric Vehicle transition. This is the sort of investment the fossil fuel wants governments to make that will have no impact and allow them to continue to emit.