it is odd. I reckon people who corbyn appeals to (the lefty porriage-knitting sandal wearing, studenty types) are more than likely to sign these petitions
Something like NO ONE has been banned from the UK after returning from the middle east, killing our buddies by fighting for ISIS
no such petition really exists about Saudi Royals in London after their dodgy dealings at home
the list is endless
but some idiot american says something contentious and WHAM!!! lets ban him