Beeching was the scapegoat.
It was Ernest Marples behind the axing of the railways.
Ernest Marples ... road builder ... hmm makes you think
Could be argued that Marples was the scapegoat since ultimately it was a cabinet decision. It got Beeching a peerage £380 a day now approx, and cost Marples his seat also same price + minister's salary.
Some things haven't altered in 100 years.
Both Beeching and Marples were scapegoats. Beeching was appointed to BTC in March 1961. The length of route miles closed in 1961, 62, 63 and 1964 were 150, 780, 324 and 1058 miles respectively (total = 2312 miles)
Wilson's government promised to
halt the closures when they came to power in October 1964. The route miles closed in 1965, 66, 67 and 1968 were 600, 750, 300 and 400 respectively (total = 2050 miles). Barbara Castle wasn't a road builder in the way Marples was, but Wilson's government were almost as good at closing railways.
For completeness, Marples took office as Transport Minister in 1959. Between 1950 and 1958 there were 1650 route miles closed: Marples wasn't the first Transport Minister to oversee extensive closures.
The truth is somewhere around the fact the UK had a post-war clapped-out* railway network which was far more extensive than needed. The network had developed as a result of capitalist speculation, rather than a proper plan. (*overused and under maintained through the war years)
Someone needed to cut the network down to size and orientate it towards what was needed. Beeching and Marples were the lucky ones who got the job and forevermore will have the role of panto villian.
On the positive side, the closures meant we gained an extensive system of heritage railways so people today can enjoy historic trains in the way they were designed to be used. And Beeching's support for freight containerisation (something he is rarely credited for) has led to us having a rail network where freight container movements have grown to the level where we need to look at projects like HS2 to create additional capacity.