Of course he would, same as a Villa fan would be biased in favour of Villa.
As for the trouble at Burnley, and other games, do you seriously think the Burnley fans just went to the game to watch the game, but were attacked by Celtic fans?
Before the Eastern Europeans took hooliganism to a new level, which country would you say would have been regarded the worst in Europe for hooliganism? I reckon England would have been pretty high up the list. Much, much, higher than Scotland for sure.
I'll introduce William Winstanley as exhibit A. Who is William Winstanley I can hear you ask.
"William Winstanley, 23, from Wigan, is accused of behaving in a threatening or abusive manner at Kent Street and shouting, swearing and gesticulating at other supporters. He is also charged with being in possession of cocaine."
This was at the Celtic - Airdrie game on Saturday. Every time Celtic play against Rangers, or any English clubs, they get ICF type thugs coming up, snorting the old Peruvian marching powder, and looking to beat up Celtic supporters. Rangers, Hearts, and now Airdrie fans have had links with Tommy Robinson. This should tell you all you need to know.
Anyway, I'll see your Sunderland, and raise you a Manchester 2008. Good luck digging up a comparison with that.