“If by "women are physically inferior and need to be protected" you mean "because women are physically weaker, the only life women are capable of, or should be allowed, is the one that was reality not so long ago, where they weren't allowed to vote, weren't allowed to own property in their own names, have bank accounts, or generally have any legal existence apart from their husbands" then certainly that is false.”
Amazing to me that you extrapolated all those social attitudes from one brief post. A post that mentioned nothing about bank accounts or property ownership.
Your attitude is part of the problem. You’re trying to keep him from expressing his opinion, but it is a valid point. It deserves to be considered on its merits without you setting up a strawman to be knocked down and discarded.
This transgender movement insists there’s no difference at all between men and women, and gender identity is as fluid as we want it to be.
There’s no way to hold that view and still claim that men cannot compete as women. It is either one or the other. We cannot have it both ways. Either we’re going to have to continue to allow men to beat women in open competitions, or we’re going to have to admit to ourselves that men and women are fundamentally different, and women need special protection because they are different.
As other posters have said, the choice is up to women ultimately.