Don't Orcs call themselves the pig folk. I think they should be more like pigs, they way Kajits are like cats and Argonions are like lizards. Perhaps that's just me though.
No they don't, that's racist imperial propaganda during the ages when they were treated as monsters.
Also, they're orsimer. Orcs is this game's short way of saying orsimer. They're mer, elves, http://www.games-workshop.com/MEDIA_CustomProductCatalog/m1182290_99060209121_O&GGrimgorMain_873x627.jpg, http://www.dqshrine.com/dq/dq2/orc.jpg, http://www.freewebz.com/lord_ofthe_rings/Orcs2.jpg, http://farm4.static.flickr.com/3026/3033809202_86a5ac1280.jpg, or http://www.about-world-of-warcraft.com/images/Orcs.gif. They should look more like http://www.imperial-library.info/sites/default/files/races_mw_orc.gif