Not a chance that any of those could/will be implemented.
If they actually were, then (all going to plan) as a Computer Science graduate in 3 years time I will have no option but to leave the UK and I certainly wouldn't be alone in that. The skills shortage in the industry will hit the economy hard.
Another thing worth noting is that security will actually be reduced in the long term and quite significantly as that will create an environment where it's difficult if not impossible for future security experts to grow organically and form their skill sets.
Most of the best minds at GCHQ are where they are today because they were able to play around with security vulnerabilities at home and at University.
Also it's worth noting that it's likely that in time new solutions to getting around the restrictions will occur and they will be at Step 1 once again.