Desertia,
'progressive' is a term much favoured by the left and means 'getting our way'.
'regressive' is also a term much favoured by the left and means 'getting our Communist butts kicked'.
Remember, you do not have to pay the political levy to the TGWU.
(that, btw, would be seen as 'regressive' and they would 'not be enamoured')