You must have forgotten Thatcher

she was certainly a fan, but the spark for the match for almost all of the privatisations was EU/EEC directives

if the UK had never joined the EEC those industries would likely still be under government ownership

(for better or worse, water certainly was a disaster, but telecoms and airlines seem to have gone reasonably well)

and rail was done post Thatcher, with her on record as saying it is "a step too far"