Does anime have to be bad?
Yes.
However if it is bad that doesn’t automatically make it anime, so we’re at a bit of a standoff here.
Watch Fullmetal Alchemist and then tell me all anime is bad. I may write crappy scripts, but you don’t have to be a snob to have decent taste for anime.
It’s about two brothers who try to revive their mom but end up damaged. One brother ends up a disembodied soul in a suit of armor, and the other loses an arm and a leg (then gets artificial limbs from his childhood friend). They try to restore their bodies via the sinister Philosopher’s Stone, but discover a conspiracy involving immortality and primal embodiments of the Seven Deadly Sins. Alongside them is a total fucking badass who can create explosions by snapping his fingers and a mysterious serial killer.
There’s an original series and a reboot called Brotherhood. Watch the original then the reboot and ignore the movies (except probably the live action adaptation which is coming out).
There’s a lot of “good” anime like Cowboy Bebop and Evangelion, but I haven’t seen more than one episode of Bebop and nothing of Evangelion.