So what if it's not unique to Catholicism? I was asking specifically what the misconceptions are. You've redirected.
As someone who left Catholicism for Wicca and then eventually gave up on religion in general, I think it's valid to point out that these flaws are not unique to Catholicism.
I would say that in pointing at all those things it has done wrong, you are implicitly saying that that these traits are unusual — but we're all a bunch of monkeys, it's really hard to get us to be nice to each other, and it's really easy for Machiavellian sadists to rise to power in every institution.
In what way? Does pointing it out change the facts? Why can't we have a discussion about how Catholicism is objectively hypocritical and not have to discuss all of the other things that are wrong in the world?
You're welcome to point out the flaws and hypocrisies all you like, though I know from my experience as an angry bisexual Wiccan teenager that had to go to a Catholic school and study the bible as part of my education, that it does little good unless you have the goal of looking pompous — especially when the very line you were quoting was
> It makes me immensely sad that people have so many misconceptions about Catholics.
rather than
> It makes me immensely sad that people don't realise Catholics are uniquely perfect.
The former does not imply perfection, nor even an absence of hypocrisy.