> In the UK we have many people who claim to talk for the "working class" that as one of my friends put it "looked like they have never done a day of heavy lifting in their life". I wouldn't speak on behalf of the working class, I do a white collar job.

Let's take this rhetorical pattern for a spin around the block.

Here in the USA in the 19th century we had many people who claimed to speak for slaves who looked like they'd never been black a day in their lives. I wouldn't speak on behalf of slaves. I'm a free person.

Here in the UK during the Potato Famine we had many people who claimed to speak for starving Irish people who looked like they'd never been starving or Irish for a day in their lives. I wouldn't speak on behalf of the starving Irish. I'm well-fed and English.

Here in Wherever we have many people who claim to speak for sexually harassed women who look like they haven't been a woman for a day in their lives. I wouldn't speak on behalf of women. I'm a man.

It doesn't seem all that robust.