He's not ineffectual at being a cult leader with a rabid following, and he controls the DoJ
They're not scared of Trump personally doing anything to them.
That could be a reasonable amount based on the person. I'm a large framed dude, and when I was seriously trying to bulk through 7 days a week of HIIT, I had to eat like 5,000 Calories a day. My resting heart rate did get to the low 40s for a while, so that was cool (doctor said it was a good thing).
Btw, eating 5,000 Calories of healthy food a day fucking sucks. It's basically like eating is your full time job.
Most of that still won't do anything because they don't have the numbers (like articles of impeachment). The house needs 4 Republicans to go against the pack to hit 50%.
I'm not saying it's not worth doing, but FlexibleToast was saying that all of that is posturing and won't accomplish anything.
The answer is that Democrats can't directly do anything, which was what the person you responded to was alluding to.