That wasn't a questioning. That was a disorderly outburst
You said he doesn't get challenged. That was an example where he was. It wasn't the first time. Although the protest usually comes from the gallery.
Demeaning how? Our nations purse strings (our tax dollars) are controlled by the Congress by design.
The process is demeaning no matter how it's done. The Capitol is up on a hill by design. It's meant to be demeaning.
Why not conduct the president's constitutionally-mandated act of informing the Congress in the same manner?
That's not "informing the Congress." That's something different.