Earlier quoted context omitted.
Is this kind of thinking incorrect?
Probably incorrect. And I could just as easily posit the reverse. Say we have one woman and nine men. If we add a woman, does it really double the likelihood of a harassment suit? Why would it? Either one of the nine men harasses women, or he doesn't, why would adding a second women change his behaviour? On the other hand, if we halve the proportion of women by hiring ten more men, I'd say you may have doubled the ch…
In a very simple model, going from 0 women to 1 woman should increase the number of harassment suits, right? Then going from 1 woman to 2 women should have a similar effect, because all naturally occurring functions are differentiable :-) Intuitively it seems to me that the amount of reported harassment should be proportional to how many opportunities for harassment exist, or (under a different theory) how many opportunities for false claims exist, which is the same number by another name.
So it's a little strange to hear you say that anyone who disagrees with you must believe in nasty things like "harassment is made up by women". Do you know how hard it is to figure out causality from observational data? For any possible trend you could find in the data, like "reported harassment scales as the number of women times the square root of the number of men", one could probably make up a just-so story that blames men, and a different just-so story that blames women.