You are making a lot of assumptions. If everything goes absolutely perfectly we might have an end in four years. I doubt it though. This man has already started dismantling our government with his federalist society stooges on the court. He plans to gut the executive branch so there is no Opposition within government. He has shown he will use violence to keep power.
You don’t oppose fascism by being quiet. You oppose it by being loud and making it impossible for them to do their evil shit.