I did not claim they were Democrats.
They do promote resistance and violence against conservatives. They do try to shout down conservative speech. They do support the same methods as Democrats in refusal to accept any promotion of narrative that differs from their own.
You are correct in expressing ridiculousness to the idea that a KKK lynching would be attributed to the Republicans. The KKK came out of the Democrat Party. (research the Democrat convention of 1924). All members of Congress who have ever been identified as KKK members are Democrats.
Take your pick of these articles and videos. You will find nothing that separates the KKK from the Democrat Party or connects it to the Republican Party.
The Democrat Party’s promotion of racism is approaching a century of existence.