Can tubes ever be as quiet Solid State

The trick to getting tubes to be really quiet is the same that is used by transistors- fully differential circuits with really good constant current sources, with a well-regulated bi-polar power supply

This is not to say that such a circuit will be as quiet as the very quietest transistors, but it will sound better and will be quieter than many transistor circuits as well.

Many well-regarded 'tube' phono sections are actually hybrid. Just my opinion, but the idea of installing a solid state filter at the input of a phono section does not work for me. If I'm going to have analog, I want all the detail and the smoothness its known for...

Well designed modern tube products are as quiet as any solid state product out there. I currently have a Mac tube pre amp and amp, and I can turn the volume up completely with nothing playing and there is no sound, complete silence. I have both VLT and ARC products completely silent as well.

I can turn the volume up completely with nothing playing and there is no sound, complete silence.

Was it plugged in?

I have not even heard SS that can do that - not if you put your ear up to the tweeter with the volume turned all the way up.

My Modwright SWL9.0 line stage and SWP9.0 phono stage are astoundingly quiet, regardless of topology.