How to fight Historical Revisionism?

Just a background, we recently held our elections and the person who won was the son of the late dictator Ferdinand Marcos.

Now I am not a historian myself, but all I know is that he stole money in his time as president while also killing and torturing thousands of people when he declared Martial Law. 

Don’t take my word for it, but I believe one of the reasons he won is disinformation. Tiktok, Facebook, and Youtube was used to give alternative views on history - such as them being framed, them being rich prior to joining politics, but most importantly the Marcos Era being referred to as a golden era in the Philippines.

Right now there are news circulating that some books pertaining to Martial Law should be banned.

I participated in fact-checking and fighting disinformation during the campaign season but it seems like the alternative history has already prevailed. It’s concerning that a lot of people now refer to TikTok and other platforms for their sources of history, and banning these books will validate all of that.

Sorry for the long block of text but main question is

How do we even fight this?

How can we convince people that anecdotes from their relatives aren’t enough to invalidate the atrocities that happened to other people?

How do you respond to people saying “history is written by the victors” as an argument that history is inaccurate?

What we have to remember is that this is politics. Politics is about material conditions, about brute power, about persuasion. The public perception of history is subservient to the needs of the ruling class of any country.

I realized that most people in my country make their decision based on material conditions (feeding their family, having a roof over their head, having a decent job) rather than the more esoteric (doing the right thing, leading a moral life, having a correct accounting of history). Mas naniniwala sila sa "matatamis na salita" kaysa sa mga politikong may "credentials". Yan ang nakakalungkot sa Pilipinas. Sa ibang salita, mas mahilig sa TSISMIS o CONSPIRACY THEORIES kaysa sa FACTS.

It's disappointing as we’re seeing our history being re-written now that they are in power (old books being banned & new ones to be introduced in the academe), but with time, maybe we’ll end up with the right version again.