Fascism is a systemic issue. It's a cancer that takes roots when democracy starts failing.
Having the concrete and unsystemic problem of there being probable cause Trump did some very, very bad things looked into properly is a much smaller ask.
However, even that's an imposibility in today's world.
I'd love to have a magic cure for fascism. There is one, although it's undoubtedly very unmagic: Painstakingly dealing with obvious lies and crimes, one at a time. Respecting the Constitution. Having people be truly equal. Especially in the eyes of the law.
Without a thourough dose of said cure, fascism will hide away and get ready to rise back up.
The Epstein shit is one step of a bajillion mile journey. It's not the first and it's not the last. But without it, there's no journey to be had.