Yup, same here. I actually use my laptop on… my lap 
, so weight is quite relevant.
I’ve used those. They’re awful. Touchpads are better (though to be fair, I much prefer, and mostly use, a proper external mouse).
My current laptop has: 3 USB 3.1 (2 type A, 1 type C), full-size SD, SIM, mini-DP, full-size HDMI, RJ45 (ethernet), 2 mini-RCA (audio in/out) and power (barrel plug). That’s eleven. Honestly, four is a huge step backward for me, especially as I use five regularly (power, network, and mouse are always in use, and I sometimes want to plug in my phone and/or an SD card).
I don’t personally know any such people, but… good news! The Framework concept means these people could theoretically get a different shell that does have an external battery but otherwise uses all of the same internal components. I think Framework has the right idea to start with targeting the mainstream.