Why would the Jews put so much effort into totally covering up the history of a civilisation in Ukraine, 10,000 years ago? It has no relevance to modern politics

They oppose everything that they think has a logical endpoint in opposing jewish power.

The oldest swastika is from Ukraine, 12,000 years ago. The people of the swastika that spread the symbol around the world was, as we know, the Aryans. Jews have tried a lot to suppress the Aryan/Indo-European conquests but archaeological evidence has proven the racial theorists of the 19th and 20th centuries correct. If the symbol of this people has been found from 12,000 years ago then there's the possibility of continuity and pre-Yamnaya Aryans being a thing in other civilisations, even if it's extremely unlikely and could never be proven it's something jews are scared of.

People who are into comparative mythology, alt-archaeology surrounding Egypt and ancient civilisations all end up thinking along the same lines as the Volkisch, NS etc guys did eventually. If literally everyone who ever looks into ancient civilisations comes to the same kind of ideas as the racial theorists of the 19/20th centuries did then obviously jews are aware of this and would see it as a threat, as it already did become a threat to them when it culminated in National Socialism the first time. It makes perfect sense why they would be scared of it, even if it's not true.