Data is one of the most invaluable members of the USS Enterprise 1701-D. That is an indisputable fact. Without this amazing android, any number of calamities would have befallen the crew of the Enterprise.
Not only that, but a lot of civilian populations would also have died horrible deaths at the hands of frightening aliens or bizarre space anomalies. Data’s a peach. There’s no getting around it, and we all love him for it.
But, he’s also incredibly dangerous. Like, dangerous enough that it really doesn’t make sense to have him aboard a Federation starship. And it’s insane for Starfleet to have granted Data the position of the second officer. Even more absurd to place him aboard one of their most important ships. Data, himself, proves this point time and time again throughout the series.
There are countless examples of Data going rogue. He’s taken over the ship, he’s lied to his commanding officers, and he’s been subject to manipulation.
It’s a terrible truth, but Data shouldn’t have ever been allowed to set foot on the Enterprise. He’s too much of a risk...