The first photo looks like eggs, the second too blurry, and the 3rd like, well, tiny orange bugs. Is that possibly correct? The first ones aren't mobile? If so, they could be something entirely different.

Would it be possible to get a closer shot? Whatever they are, I suspect something much larger is taking those bites out of the plant.

3-lined Potato Beetle a possible ID, eggs and larval damage are similar.

AH HAH

I FOUND THE REAL CULPRIT

Now what should I do to try and save this plant??

Inspect your plants carefully and crush the eggs and tiny larvae when you see them. That alone will help considerably.

I'm scoring a point for that ID.

If your tomatillo plant is pre-bloom, or the blooms have not been eaten, there seems to be enough greenery to keep the plant going. Horticultural oil sprayed on the plant may prevent feeding; any spray with Spinosad as the active ingredient will be effective and is considered an organic control.

If a single plant is being infected, I would try hand-2-hand combat for a few days first, unless you have the above ingredients on hand.

Thanks everyone

I appreciate your help!!

Happy gardening