We need to heavily penalise having more than 2kids
And leave having children only for the ones who can afford it? Who probably have a much heavier impact on the environment than poorer people?
We need to heavily limit air travel
Which would make many a business collapse in the process...
All new cars need to be hybrid or electric,
Electric cars have a higher carbon footprint; the energy needs to come from somewhere (i.e. fossil fuels burnt to make energy...) and since the transfer of energy is never going to approach an efficiency of 1.0 you are actually creating a greater need for energy than direct combustion.
limited to speeds automatically,
Slower speeds lead to an increase in congestion, which leads to longer times fuel needs to be in use for. It makes no difference, or potentially even has a negative effect.
number of miles needs to be limited
How does that work in practice? You're on the M25 and suddenly your car cuts off, needing recovery for both you and your car? Penalties won't make a difference, same way taxes don't make a difference to consumption.
Heating needs to be limited to 19 degrees by default via smart hubs, only allowed to rise in approved circumstances
No need if houses were insulated better. The standard of housing and insulation in the UK is shocking, compared to other countries.
Meat needs rationing
Cue the slaughter of millions of animals whose pupose is suddenly void. And a massive black market for the rest - would people be prevented from rearing their own chickens, say?
Food imports need reducing
And yet there is mass panic on MN over Brexit, partly because reducing food imports would be devastating to our country, which cannot sustain its population on what we produce.
“Cheap” good from China etc need heavily taxing
Why single out China? It would just move the problem elsewhere. And cheap =/= poor quality, even if there is often a correletion.
It needs to be illegal to create sealed units in goods which can’t be accessed for repair
Depends on the hazards botched repair jobs would cause. I'd rather have a sealed unit than risk my fridge catching fire or an electric shock from a faulty shower unit.
We need to be given clothing rationing to stop all the fast fashion
NOT the answer. What we do need is a greater manufacturing base at home and an appreciation of well-made clothes.
In general, you rely far too much on government interference in your post. A complete nanny state is not the answer to all our ills; not even the Soviet Union was able to exert that much control over its people., and they were pretty efficient in keeping tabs (I had the misfortune to have been born into it...)
What the UK needs is a complete shift in education. Instead of the traditional academic Ebacc subjects there should be far more emphasis on DIY skills, efficient housekeeping, craft and sewing skills, knowledge of local plants and their uses (seriously, how many of us can identify useful wildflowers and separate them from poisonous ones, how to recycle paper at home or know how to prepare wood for usage?) and enough creative education to comply with reduce and reuse? In addition to computer science skills (different from ICT, mind). Less emphasis on Shakespeare and knowing the six wives of Henry VIII, more emphasis on understanding Science.
My family don't consume much... because we have sufficient knowledge of Science to repair many items, I am well-versed in sewing and therefore reuse old clothes to make new, stylish ones and upcycling where possible, both DH and I are good at DIY and we don't mind upcycling second-hand stuff. I craft a lot, cook from scratch and don't need too many imported foods, rarely ever processed ones. We are both learning gardening skills and have started growing our own herbs and vegetables. We shop locally.
And while I love Hobbycraft I rarely buy from there. The point of crafting is not to spend more than buying would have done.
All of this stems from our backgrounds and education - we are very much self-taught, but others may need help with that. So the education system needs a kick into modern life, which, yes, does mean more reliance on traditional skills. It means, ultimately, reducing consumerism, but that is only possible if we take responsibility ourselves and invest time, rather than saying "the government should" and stick our heads in the sand.