Super wrong. Let me explain it simply. (You serving and vets- this isn’t intended for you, so relax)
Active: Combat arms; infantry, artillery, armor, sof; stuff you can’t do civilian side.
Reserve: Combat sustainment; Medical, logistics, MP’s, engineers, stuff you need from experts who do this stuff in their every day jobs.
National guard: more combat arms; lots of helicopters (utility, attack and dust off) some sustainment, also has SF and specialty forces.
No single component does anything alone- when one goes they all go.
A single AD SOF deployment will take a brigade of National guard troops to provide security, reserve medical and logistics, and all sorts of multi service support.
This has been like this for a long, long time, which is why you have AR/NG units with as many deployments as some AD units.
We aren’t ’down to reserves’. The Reserve and Guard are deployable components that are critical for military operations and are there every time.