Should you vote in a referendum?

For several weeks, there have been circulating content on the Internet that encourages not to pick up the referendum card. This arises from serious concerns about the fairness, legality, and consequences of the referendum. Organizations are calling for expressing opposition to the government's policy, which is organizing the referendum at the last minute, linking its organization to the election campaign, and preparing imprecise questions.

Do you think it's worth casting your votes in the referendum? If not, why? What is involved in casting votes in the referendum? Can you refuse to participate in the referendum? How to do it?