Agree. The word "transphobic" itself is where her argument falls apart.

Everyone knows what's phobia is. An irrational fear.

A legitimate concern, question, or discussion on nuance or what exactly is being proposed is not a fear at all, much less an irrational one.

Further, even for people who are legitimately afraid of the consequences of Trans inclusion, it doesn't automatically translate to actions of hate. Take arachnophobia, for example. Not everyone who fears spiders goes out of their way to squish them or scream for someone else to squish them. There are just as many or more arachnophobes who back away and leave the spiders alone.

Even if you agree with the general over arching advocacy, that doesn't mean you have to agree with every single point or position the advocates are promoting. I don't agree with every feminist position and I consider myself a feminist. Does that make me a misogynist? Of course not. Advocates are not always 100% right. They misstep and overstep. It's no different than any other advocacy group.