Re: Shaving The Beard:
Yes they do but they don't trim their moustache...
I haven't seen a single mushrik or non muslim with muslim beard.
It doesn't surprise me that you haven't seen an Amish man, it is customary in their religoin as well. Hence why it is known to some as an Amish beard, not a muslim beard. Other non-Amish men also fancy that fashion.
But the fact is that whatever was the fashion 1400 years ago has nothing to do with the facial hair fasions of today. Did Muhammed really think that it was so darn unique to grow facial hair in that way that it forever would only be a Muslim fashion?