The answer to your question is no. Previous Labour Govts closed pits on grounds of natural exhaustion,poor geological conditions /safety. They didn’t close any through a programme of closures through vindictive politics like Thatcher did. During the 1970s the Barnsley coalfield alone had something in the region of 34 pits.
In essence the security apparatus of the state were used against its own citizens in a way we scoff about when speaking about the old Eastern Block. People going about their life we’re not allowed to travel internally in their country like Stalinist Russia. My friend could not simply go on holiday to Scarborough from his home in Mexborough - the police prevented it. It seems silly and trivial on paper but the implication is obviously chilling- the police could in effect impose internal exile.
My overriding memory is going on holiday to my granddad's caravan in Cleethorpes - just outside of Scunthorpe we saw a convoy of about 30 coal wagons accompanied by same number of police vans full of police. That just about sums up the lengths they went to and part of reason they spent 2 billion policing it
Also read up on every other industry with a union as a lot of them were treated as badly if not worse in some cases e.g dockers, printers etc.
Uppity union leader attempts to bring down democratically elected government using industrial action. Government declares war on said industry. Government wins. Collateral damage lasts for generations.