For me personally to be reliable on the Russian Sphere or USA sphere for raw energy supplies is not comforting. Also Chinese finance does not make me feel comfortable either.
Europe plus a little old Sovereign UK, at the top of the pyramid, should be self determining in energy.
I do not mind taking cheap raw energy from the Russians as long as we have a plan B to immediately go to should they start 'interfering and influencing' within our borders.
I am assuming there is Russian interference in the European Nuclear sector, they don't trust us or particularly like us much.
I have to disagree this is a war in Ukraine though, the sooner the British Govt drops this rhetoric the sooner we will get some sort of normality out there!