Not a problem. Perhaps I quibble, but I think the philosophical or theological issue is simply this: Do humans have a defined nature or essence beyong simply being generally sinful? I have free will. I can do anything. I can be anything. My choices are my own, and many of my choices are mistakes. I wrestle with gluttony more than some other sins. On the whole, lust is not a sin that I wrestle with all that much (happily married). Different people are tempted by different things. I don’t know that their personal temptations really reflect on any particular “essence” of their nature.
You don’t have to be much of an essentialist to go further than Vidal, though. I don’t assume you object to calling people Republicans or doctors, for instance, based on what they do. I figure sexual orientation to be more basic than your occupation or party affiliation. Not that I’m an orientation essentialist along the lines of the rainbow activists. Just that attraction to and congress with hims or hers can be very consistent.
Anyway, if all we were allowed to say is that we’re sinful humans describing humanity would be knida boring.