The display in the 2017 MBA is atrocious, and the processors are really old at this point. USB-C is better than magsafe at this point, because charger interchangeability is amazing, and it doesn't lock into laptops like the old barrel jack connectors. It lets go when needed without damage in my experience. Durability hasn't been a problem on a single USB-C device that I own. Do you not think smartphones get abused more than laptops? Yet the port continues working fine.
Why not just get a decent Windows laptop, if you want nice port selection? The X1 Carbon is incredible, while Dell, Microsoft, and more offer yet other options. If you truly love MagSafe, the Microsoft Surface series offers magnetic charge connectors, good displays, and regular USB.
If you wanted a laptop from 2014, there were plenty of ways to get one without paying Apple their premium price.