From https://muish.wordpress.com/2016/09/04/bts-dopefiresave-me-english-trans...

In their MV, they translated one of the lines as “Everyone copies me.” This is not really correct…
It’s actually more like, “Everyone, do copy/follow me.”
You can think of it like “Simon says” game. Or, like a dance teacher that demonstrates a move, and says “Everyone, try this.”

The line I’ve translated as, They’re all under my power
The literal translation would be “They’re all my slaves.” This phrase is commonly used in context of being bewitched/being in love… meaning, they’re slave to BTS’s charms.
The lyrics have nothing to do with actual slavery. Korea never had slavery like the ones in the US. Just clarifying in case people ever read literal translation somewhere…

RM’s rap part

Sampo (3-po) generation, Ohpo (5-po) generation.
The new generation that gave up on 3 (relationships, marriage, and kids) and even a younger generation that gave up on 5 (relationships, marriage, kids, house and social life), due to difficult and unfair job markets.
Since I like beef jerky, I’m Yookpo (6-po) generation.
Beef Jerkey = Yookpo.
6-Po = Yookpo.
The media and the adults tell us we have no will-power, and sell us as a whole as if we’re stocks.
매도하다 usually means to sell in stock trading.
Stocks are apt metaphor, because you generally sell stocks when you think they have no potential for future growth. This line illustrating that society/media believes young generation have little potential and gives up on them without giving them a chance to prove themselves.
매도하다 also means to severely criticize (at times without reason, almost like framing someone):
The media and the adults tell us we have no will-power and severely criticize as a whole (implies they just group the whole generation as uniformly being useless)
Why kill us before we can try? They’re enemy enemy enemy
Why bow down in defeat already? Take this energy energy energy
Don’t ever give up. You know you not lonely
Our dawn is more beautiful than the day.
Movie: Mes Nuits Sont Plus Belles Que Vos Jours. English title is “My Night Is More Beautiful Than Your Day”
There was also a really old song, “Our night is more beautiful than your day.”
There is also a webtoon “My Night is More Beautiful than Your Day.
Over the years, various versions of this phrase was popularized. Eg. An Otaku’s dawn is more beautiful than your day.
So can I get a little bit of hope yeah
Wake the sleeping youth, go.