Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Having no Ethernet ports on any Mac laptop is reasonable seeming a minority of users uses one.

Do not get me wrong I wish my MBP had one but I understand why.

There are Thunderbolt 3 to 10GbE adapters available.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.