Well, neither tight, loose, passive, or aggressive inherently equate to "bad."

In almost all circumstances though, aggressive is a stronger play style to passive.

A tight/passive player is a "rock." They don't play many hands, and don't bet them hard when they do. They tend to lose, but at least they do it slowly.

A loose/pasive player is a fish 99.99% of the time. They're playing too many hands, and not betting enough. This is the classic bad player.

A tight/aggressive player is being selective about hands but playing them aggressively. This is the best play mode for new players trying to play well, because it allows for easier post-flop play (you'll take down more hands without confrontation and tend to have the best hand when the flop hits you). Also, it's generally the best playstyle for combatting loose/passives, and there are a LOT of loose/passives.

Loose/aggressive players play a lot of hands, and bet them hard. This is NOT a weaker play style than TAgg, it allows for greater gains and losses both, and requires greater skill to play successfully because you're facing a lot more drawing hands and hands in which it's unclear whether or not you have the best hand post-flop, even when the flop hits you. While Loose/Agressive is a strong style against tight/aggressive players, it's weaker against loose/passives who often don't have the good sense to be scared off bad calls by aggressive betting.

Ideally the best play style is to play aggressively, and stay tight vs. the loose/passives until they're all gone, then loosen up when your table is tight.