Here's the thing. You can want to have sex with someone, and want to have sex with someone soon, and still want to get to know more about them as, you know, people or whatever. Sex is an actual physical need, like hunger, although obviously not anywhere near as strong or essential, but still pretty damned essential. It's our biological imperative, we're hardwired to want to fuck and spread our seed far and wide. So, just like you might want to eat a decent meal before going on a hike, some times you might want to satisfy your physical needs before you move on to the more high minded stuff. That lizard brain needs to be appeased so it can shut the fuck up and let you focus. Everyone has their own pace, and yours is obviously slower than mine, which is fine. But judgements about consensual sex between adults is a sign of something wrong.
Here's another thing. Not every connection you are going to have with a human being is going to be profoundly deep, and that doesn't make it bad or not worth pursuing. Some people you can talk about music with for hours but have nothing else in common with. Some people you're going to be able to shed every dark corner of your soul too, but would never want to get physically intimate with. And some people you're going to have an amazingly strong physical connection with and nothing else. It doesn't mean you are de-valuing them as a person, it just means that the common language that the two of you share happens to be primarily physical.
Casual sex isn't for everyone. It can be dangerous, it can be unsatisfying, and some people use it irresponsibly and hurt themselves and others. But it is absolutely bullshit to be disgusted by your natural sexual desires (unless you're a pedophile, in which case, god save your wretched soul for that curse).