The only benefit to seeing this is that it makes me want to never become like it.
The most genuine conversations I have are with actual friends: People I’d hit up on the weekend to walk in a park, drive somewhere for a hike, or grab dinner with. I also have a circle of friends that I go out with, which I understand not everyone is interested in.
Get out of the house as much as possible, and embrace the relationships that you genuinely enjoy. Small talk about Netflix will still be a thing with people you’re not close with, but you can help steer the conversation to be more interesting if you know the things that you do/don’t want to talk about.
I recently purchased a pair of Airpods, and having high-quality USB headphones on me at all times has changed the way I think about phone calls. I have a list of about 12 people (parents, brother, long-time friends that live in different cities now), that I'll call randomly during that walk. If they pick up, great. If not, I just go to the next one. At this point, most of them know that I may just call them while walking the dog, and that they're under no obligation to pick up.
The end result is 2-3 times a week, I spend 30+ minutes nurturing a relationship with someone who is important to me, but who I don't see face-to-face often. And my dog gets a longer walk because of it.
Turn solitary activities into group activities. If your friends are into a particular TV show, throw a get together/party where you hang out and watch and discuss that show.
Invite your friends who are into solitary activities to come along to some of your new found more group oriented activities.
Regardless, understand that most of the people you'll meet will be fleeting; finding and building deep relationships with other people is hard work!
That said, what you're feeling is normal. A lot of people's social circles extend to their workmates, old friends from school and folks they talk to a lot from church. (Churches do a really good job of bringing people together that otherwise wouldn't.) People tend to be very cliquey by default because it's comfortable. Making friends as an adult is a lot more difficult than as a kid.
Also, try to meet people outside of your industry. It will help you gain perspective and might even make you better at your own work. This is especially important in tech. Many of us make a lot of money and work in what most would consider paradise (if you get to wear whatever you want, have a ping pong table and beer/wine on tap, congrats, you qualify), but it's very easy to forget that and think that everything is terrible because there are wealthier folks out there. Venturing outside of the tech bubble helps with that.
Luckily, these are a lot easier to find (and scrutinize first) than they used to be.
Also, when you have kids it’s easier to bond over common ground with the kids. Otherwise I found myself in awkward conversations yakking about work.