Brooklyn residents packed a small park named for Beastie Boys’ Adam Yauch (a.k.a. MCA) on Sunday morning at an anti-hate rally organized after vandals tagged playground equipment with swastikas and pro-Trump graffiti on Friday. Members of the crowd carried signs with Beastie Boys-themed slogans like, “No sleep til no hate in Brooklyn,” and decorated the location of the painted-over graffiti…