The right has never kept silent about evil. We have been pointing it out since I started watching politics. The problem is what actually gets done about it and what never happens. There are certain realities. Then there are the decisions leaders make about what they consider best for the country. In the end certain people always get away with it and if they do not, we are not privy to what is actually done. Ex-presidents and First Ladies are the exception so far and I do not see any video drop so far to change that momentum. If that does happen the MSM has already countered it for their die-hard ground troops.
I disagree with several points. What do you mean by "the right"? I see that R politicians and "conservative" news analysts have indeed been silent about a great many evils. Certain things are not touched, except by real die hards who are often marginalized. And this is precisely the reason we are in the deep doo doo that we are in - COWARDICE!
Example - I'm thinking about the "conservative" writers I read avidly in the late 80s time frame. Where are they now? Trump Haters!
Second point, the past is not necessarily going to be the future. History is replete with upheavels, overthrows of the established order, crowned heads separated from their necks, dynasties gone to the dust, and so on.
And the "certain realities" have only been the status quo in the US for a discrete time period. Their perfidy of all kinds including treason has gotten so insanely egregrious that something must be done about it; no more sweeping under the rug and "moving on".
Regarding the MSM, their power is diminishing day by day; they're getting to the point of irrelevance for a large majority of Americans. And that is supported by polling data, which always leans to the "other" side.