Nonsense.
The unions did not destroy British Industry, that was done with government policies and decades of underinvestment. You might recall Maggie’s ‘post industrial age’ speech.
Workers rights were indeed won by union action, and are being stripped away in the absence of Union action. Rights won can and are being removed.
Unionized workers and collective bargaining are a perfect example of the ‘Free Market’ in action.
Yes there are about 1.3million vacancies in the UK right now, there is also inflation.
Workers are in a very good position to bargain for better pay and workers in unions are in an even better position.
And for the record, inflation has arrived before pay increases, pay increases are not the cause of inflation.