No, you will be added to a list that gets sold around. Better to keep that data point private so you don’t become a target.
I’m pretty sure the pollsters aren’t cold calling or cold texting people any more. It is more likely than not, a scam.
The only poll that matters is election day.
Sisko was killed in TNG’s universe. Sisko survived in DS9’s universe due to the prophets saving him. The Trek universe diverged at Wolf 359.
The Dominion War has drastically different outcomes. Existential crisis in one universe where Sisko does a lot of meddling; barely mentioned in the other.
The biggest change to the cast is that Worf marries Jadzia Dax and becomes Ambassador to the Klingon Empire in one universe; in the other universe, he does a brief inconsequential stint at DS9 (without Sisko), never marries, then returns to the Enterprise E as pretty much the same character from TNG, and at some later point, he gets the Enterprise E destroyed.
The Picard timeline is set in the universe where Sisko died at Wolf 359.