I don't agree. It harms your cause to line up with someone who has so much contempt for women.
You're missing the point. Right wing people exist in this country. People who aren't keen on feminism exist in this country. Some people who think identity politics is a bad thing in this country come from the left; others from the right. People exist in this country who want to defend free speech and oppose authoritarianism but aren't interested in feminism or women's rights.
Rod Liddle is telling those people that the extremist transactivist agenda is a bad thing for them and they shouldn't ignore it just because feminists get up their nose.
We need those people to see this.
If you can't see that Rod Liddle pointing this out to that audience is a good thing, I despair.