Basically what we have here is people who want a ranger to be heavily armed and armored but can't give examples of rangers actually doing that, real life or fantasy, contrasted to an entire list of real life and fantasy examples where rangers and scouts are lightly armed and armored.
What you want are fighters who go outside. Not rangers. Not by what the word actually means, or what the class description says. Or the inspiration behind the class.
No, what we have is peoplewho want rangers to have the option of being heavily armored or heavily armed when it makes sense for them to be.
A fighter trains with all armors and weapons and specializes in the ones that work best for his or her abilities.
A ranger trains with all armors and weapons and specializes in the ones that work best to fight his or her favored enemies.
When it comes for the ranger's exploration half, their arms and armors shouldn't interfere with that. It's a fantasy game. The ranger should be able to sneak and track in heavy armor or over loaded or exhausted. If a base class feature is too much, make it a spell.
D&D has to start realizing that rangers have to be as fantastic as the rest of the game. Only 1e and 4e did this but it did so by toning down the fantasy a lot. 2e, 3e, and 5e were reluctant to do the same until they needed to boost sales and let go of the reins and unmuzzle rangers.