union-basher
It's a firm renowned for low pay and union-bashing.
There has been a fairly major exercise in union-bashing going on for some months.
The question is whether the Board will have the will to stop this union-bashing.

SMART Vocabulary: related words and phrases

Disapproving & criticizing
anathematize
animadversion
aspersion
aw
backbite
barrel
bash
belabour
boo
disapprobation
excoriate
knock
knocker
let someone have both barrelsidiom
low blow
mordacious
mordancy
pile
slam
union-basher

You can also find related words, phrases, and synonyms in the topics:

Industrial action

union-bashing | Business English

union-bashing
noun[ U ]
 informalukus
WORKPLACE
the activity of strongly criticizing or opposing the work of a trade union or trade unions:
The teachers' union accused the minister of union-bashing with regard to the contracts.

union-basher

noun[ C ]
He admitted he was in favour of flexibility in the workforce but denied he was a union-basher.