In my opinion, it depends on the kind of dictatorship and your status of power. I assume that you're an average US american looking at the election rn - then there isn't really anything we can do here. The system is simply too strong, and Donald Trump has too much institutional authority to be stopped.

However, I ask you to keep in mind that dictatorship isn't an authoritarian monolith and that we as common citizens have a possibility to influence and undermine authoritarian governments. Nazi Germany immediately comes to mind; many citizens disobeyed the government, may have leaked information or sabotaged important projects, even into the highest ranks (Stauffenberg and Schindler are prime examples). A dictatorship is only as effective as the bearers of power in a certain region. For example, police officers, but also common citizens (just keep in mind that a significant amount of Germans provided shelter for Jewish people).

It seems from my perspective that the authoritarian train cannot be stopped. So I'd do my best now to prepare for what is to come. Educate yourself about the key political players in your concrete region, if you decide to stay. Understand who holds the essential components of power - the council, the police officers, school district. Who supplies the common goods? Especially local producers often are connected strongly to the people and can be a major influence in the region. With this knowledge, you will be able to in turn exercise influence yourself and be able to help yourself and people who will be victims of Project 2025. We have a certain strength here - we know what it coming. Many people don't. Use this knowledge for the good. Even if you cannot stop a "global" transition to the authoritarian regime which is to come, you can mitigate its effects on the local community by participating and influencing the bearers of decisions.

I hope it makes sense. If you disagree, feel free to reply - I'd love to get more input on this topic. If any further questions arise, don't hesitate to ask :)