I used to think just like OP did as someone who was mostly reliant on social circles, dating apps (tons of matches), and also the occasional drunk lay from bars and nightclubs back when nightgame was actually good. A part of me saw PUAs as clowns and some of them were legitimate idiots like Sasha daygame (god, screw that idiot). All of this was back when I was having success on dating apps like Bumble, Tinder, and Hinge, back when these dating apps were full of actual women and not bots and OnlyFans accounts like they are right now. As someone who has had way more experiences with social circles than cold approach, let me explain to all outsiders that social circles are a waste of time if your reasoning is to get laid a lot or even meet quality women.
OP recommended yoga, I laugh at this. Most yoga classes are flooded with guys who think exactly like OP does. A lot of these guys flood into yoga classes and women are already on guard as a result of it. Best case scenario you get one hookup but if you screw more than one girl, you incur the wrath of the circle and things go poorly for you.
On top of this, OP talks about time wasted with cold approach. Social circle is a far bigger investment than cold approach ever will be. You miss the countless hours spent guarding your reputation, the mental exhaustion of all the drama they incur, and how much it is to maintain. You also have to do all the things the circle does like brunches on weekend (expensive!) and going out with them if they want to.
As for "classes", those are expensive too if you want to meet quality women. The ones in NYC ran for $100++. Yeah, every dude was trying to pay an Equinox membership as well to approach women. Equinox is not a cheap gym but every hot girl was there. You were just any other guy and the women knew why you were joining the classes too, to talk to them. Oh and the subtle ****blocking from friends, instructors, and other jealous dudes was insane.
Everyone wants the easy pill.
Everyone wants to feel like they can just make friends and models will fall into their laps, it doesn't work that way.
Everyone wants to feel like they can get a magic hobby and models will party with them.
Here is the truth, it is ALL tough and for most men, a waste of time. For most men to even consider anything other than an LTR with a decent looking girl is a waste of time no matter if you do daygame, nightgame, or social circle game.
For me, cold approaching has been a godsend. I have met way more women and had some promising opportunities through daygame.
Problem is that most men never learn and they end up sounding like OP as a result. They will spam with the same openers, not pay attention to their body language, not learn how to talk to women properly, and then say it is a waste of time.
Social circle game is a far bigger waste of time, energy, and resources than cold approaching ever will be.