I always find it remarkable how much the hard left take their "facts" and language from the Tory Eurosceptic right.
Although I am far from being "hard left" (and thus cannot give an answer from that perspective), I have no problems in using Tory (or whatever) words if they seem to be an accurate description of reality.
I would actually invert the argument altogether: do you have any problems in using other people's keywords just because those people are "far away" from you? So casual agreement with the "other side" is a substantial (negative) argument for you?
But, from an intellectual perspective, I would argue that people sometimes refuse an argument just because it is made from the "other side". That doesn't seem healthy.
From a media/narrative perspective I see your point.
