The question is dishonest. The real question should be, "Do you support checking that every woman in women's sports is actually a woman?" Because that's the reality of what is happening. Just to try to find that 0.001% that are actually trans. It's an attack on women's sports as much as it's an attack on trans people.
I've seen more examples of women 'mistaken' for men and being harassed than I've seen examples of actual trans athletes being banned.