BTS - Baepsae/Crow-Tit/Try Hard Lyrics Meaning

A "Baepsae" is Korean for a try-hard.
In the song, they talk about how they've been told they'll never make it because they don't do things the way their elders use to do.
They say how they hate it, and that they'll show them. They're not just try-hards. They're going to make it, even if it isn't the way they're always told to.