Why go nuclear? 2560MWe tidal power station in Severn estuary would cost about half as much to build

Why go nuclear? 2560MWe tidal power station in Severn estuary would cost about half as much to build create 1000s of jobs
https://politicsthisweek.wordpress.com/2016/10/28/bcfms-weekly-politics-show-presented-by-tony-gosling-53/

cost of Hinkley C nuclear versus tidal power; Bristol Channel tidal vs nuclear power cost calculations from last week's show MeyGen Pentland tidal power scheme: cost £1.6bn, 384MWe = 400 turbines at £4m (0.96MWe) each. Hinkley C EPR (PWR) nuclear reactor: cost £37bn = 2560MWe. Bristol Channel tidal power scheme, approximate cost £10.7bn: 2560MWe = 2,667 turbines at £4m (0.96MWe) each.

Second hour: Investigative reports: Paul Mobbs, former engineer and environmental journalist, looking at the choices between nuclear and tidal energy around the Bristol Channel and Severn estuary discusses alternative energies and their viability, costs, viability and how economic ideologies of governments need to change before progress in these areas can really be made: the Severn estuary, along with the Bay of Fundy in Nova Scotia Canada share the world's greatest tidal range at 50 feet or 15 meters the tide goes in and out, up and down twice a day; the Bay of Fundy Canadians are installing new tidal schemes there after successful past schemes; the Scottish tidal MeyGen tidal energy scheme that has just started; viability, energy output, and costs of a Severn barrage system as compared to Hinkley C nuclear power; the Atlantis, MeyGen, Pentland tidal power scheme in Scotland which will have 61 turbines; Paul's calculations: Hinkley will generate 2560MWe on average, 0.96MWe on average is what each tidal turbine delivers. So to generate the equivalent power of £37bn cost Hinkley C we'd need 2,667 tidal turbines.
https://groups.yahoo.com/neo/groups/Diggers350/conversations/messages/6036
Paul calculates if each tidal energy turbine costs less than £7m each they'd generate the same power cheaper than the planned Hinkley C nuclear power station; the tidal turbine generators apparently cost about £7.5m for four making tidal power around a quarter the cost of nuclear? Other estimates suggest the cost per turbine of large tidal schemes is around £4m per turbine, which is still around half the cost of Hinkley C nuclear power station.
http://atlantisresourcesltd.com/media-centre/atlantis-press-coverage/232-1-6-billion-tidal-farm-project-off-coast-of-scotland-is-the-world-s-first.html
Fracking – banned in Ireland and Germany; ideology of constant growth; energy consumption only cut in recessions; where are we heading with climate change? – the tipping point and 'Armageddon'; supremacy of oil – manipulated – peak oil, Saudis selling large stake in state oil company, energy used to obtain difficult to get oil; zero-carbon power plant – carbon capture by Carbon Clean Solutions – although how much coal left? How Israel became the global hub for surveillance technology – Linux open source technology, drones and Israelis; Paul Mobbs' website www.fraw.or