People like ABS, sure. They also like cheap. Can cars without brake safely? Sure. In all of the same conditions? No. Car manufacturers don't really care if it's safer, they care if it helps them sell more cars. As a safety feature which ISN'T mandated by law, they don't include it everywhere. There was a time when seatbelts were optional equipment, after all.
I used to think that I didn't need anything like ABS. I'd even been known to say that it was "too bad" that the Supra I bought had it, back when I was only a little older than you are now. Time and experience have changed my mind on that point. 100,000 miles isn't really all that much. I have put a few times that mileage on my Supra alone, as well as on several other cars. By age 20, I'd put more than that on my third car's freshly built motor.
I can't help but wonder at some of the things that you've said, though. You have stated that you don't lock up the wheels, and modulate brakes to avoid it, and be able to steer. I find this curious, because if you do that, the ABS does NOTHING. You've also said that you press the brakes a little hard, so that you know where the limits are. Do you really need to actually skid to know that the tires went beyond their limits? Because the brake pedal pulsing at me lets me know EXACTLY where the limits are, if I need to know, and faster than feeling or hearing a skid will, particularly since some of the stickier tires that I've owned will squawk while still not locked up.
I believe that you are making a mistake by removing the ABS. I can drive my Supra for thousands of kilometers without ever activating it. By the way, since I don't drive the Supra as a daily driver, that means that those thousands of kilometers are not particularly tame driving, either.
Still, it's your mistake to make. I would like to talk you out of it, and hopefully at some point another person will read this thread and reconsider.