1e orcs are literally pig dudes.
I'm not a huge fan of overt racism in my campaigns because I play with a mixed group of people (racially, gender) and figure that, after a day of getting crap for who you are as a person, your idea of fantasy escapism probably isn't getting crap for your selected race. My exception is a half-hobgoblin race (no orcs in the base campaign area) where it's made abundantly clear that no one is going to like you. This doesn't mean everyone else is all happy-happy but it's more mild distrust or curiosity than shunning, closed doors and racial slurs.