I thought the meaning was quite plain. The point being made is that, whatever the view maybe in America, the right to bear arms is deeply distrusted in the UK and (to a lesser degree, I think) in much of Europe. The point is how would Americans regard a website that asked them to support an organisation that that was inimical to widely held views in their society, expressed the view in a 'foreign' language and yet also claimed to be 'American'. I hope this helps.
OK.
Your analogy is clear now.