Why does Iran get so much fear and respect.

 Iran and Hezbollah has been chest thumping for days.  Both have said that if an assault is conducted into Gaza they will attack.

My thoughts?

Bring it on.  Oh and I'm not cheering for war.  I would prefer that a cease fire were declared and Israel would continue to target leadership, smash infrastructure and tear up anything they can from the air or through assassination.

But instead the Biden administration seems to be saying nothing except a rather feminine "don't" and seems to be paused up by the threat from those two.

Why?

Why does Iran get so much fear and respect?  Why aren't we hearing from our State Dept and Defense Dept that if Iran takes one step into the muddy waters of the Hamas/Israeli conflict then they get micro-atomized?

I sense US weakness.  I sense EU weakness.  

If I sense it from my chair then so does everyone else worldwide.