Many Republicans don't.
Including you whenever the issue is raised and links and videos are posted to said behavior.
In fact you claimed it isn’t a serious problem — the same behavior you are criticizing now because "liberals" might behave in the same manner in return.
You've spent weeks avoiding answering questions and addressing information regarding white supremacist behavior -- you already know the answer to your own question based on your own actions as well as the actions of those you vote for and the actions of those in your party who are actual white supremacists.
Republicans blocked any investigation into white supremacist behavior in law enforcement and never discuss the issue even when it leads to mass shootings.
Likewise, many Republicans actively support the white supremacist agenda by promoting white nationalist talking points in their platforms and speeches.
You should stop using "we" when you ask these loaded questions -- it is not a neutral question ("we" can mean anyone you choose) and shows an obvious agenda.