Some were abusers or party to the abuse. Some of them were Democrats, some were Republicans, and some were not strongly either.
Some of the biggest names may have been involved to that extent, but perhaps not. You can imagine why people might suspect the worst, but you really need very solid, credible evidence before leveling such charges. That includes Trump and it includes Clinton.
Many people made a deal with the devil by befriending Epstein in spite of indications that he was shady. Some had little indication and may have been overly naive, some just stuck their head in the sand, and some basically knew but did nothing or else severed ties too late. Again, you’ll find some of those people in business, some in academia, and some in politics. Some Democrats and some Republicans.
A bunch of rank and file Dems on the internet, along with a bunch of elected Dems, are going to try to overplay their hand on Trump for the thousandth time to try to act as though they’ll get evidence of the worst kind of wrongdoing. In a situation where 5/10 is terrible, they’re going to keep doubling down to claim that it’s 11. And so then, even if it turns out that the president’s level of culpability is 6 (which, granted, it may not even be), and which would be its own kind of horror show, a whole bunch of the guy’s supporters are just going to turn that back on all those Dems because the awful outcome just didn’t happen to be as awful as they claimed.
And you’ll have a bunch of people who really earnestly in their hearts lower the detestable behavior and would prefer justice for the victims.
But for most of them, their tribal sense of politics is going to act against that better impulse, they’ll rationalize away any criticism of their own side at least partially because of the vehemence with which they detest crimes on the other side, and we’ll all just continue our race to the bottom.