But the sad thing is I haven't done any withdrawal with this casino since I always go all in. Still waiting for my turn. GL all.
That's sad. You deserve a max win

So, if you are a genuine person who has nothing to hide, I don't see a reason why you should find providing your personal information as a big problem, it's just a way for the casino to know who their latest customer is, like I said before.
There are a lot of people who don't want to play in a casino that requires KYC at some point (most do). But it's also true that there are a very few number of casinos which don't require KYC at all.