MARTIN1234
'..nor that I don't need to read back the instructions I receive.."
Not true.
A cursory examination of the FAR/AIM (which I'm sure you're familiar with,being an obvious paragon of procedure etc.) provides mandated procedure for readbacks etcetera.
Try not reading back an IFR clearance, or a hold short instruction, etcetera etcetera and see what happens.
Your post is jingoistic bs, pure and simple. I've experienced both styles of 'comms', in the UK (then RAF) and in the US (present - local 'podunk' airports and major airports /control centers).
Courtesy/friendliness, like a smile, costs nothing, and if it doesn't interfere with operations, is appropriate.
This whinge would definitely appear to be a manifestation of us/them egotism, inappropriate stiff upper lip-idness, 2X4 up the butt.