I don't know if somebody is saying exactly that, but the position is quite clear. There is very little condemning of violence from Democrats. I actually don't know about any. Democrats simply don't see violence on the streets, or don't care. Look at Belarus. 100.000 people in streets. Not a single shop robbed. Not a single car burned. That's peaceful protests.
Hmm? It's not so clear, honestly. Personally, I've seen a fair bit of disapproval for any violence - as well as that BLM itself tends to
actively work to discourage and end violence and aid law enforcement when such is legitimate. Add to that that a heck of a lot of the damage and violence is being intentionally caused by white supremacists that are actively working to either stir up violence (quite a few that have been arrested for such at last check), create the spectre of it all being unruly mobs to delegitimize the cause and scare people for Republican benefit, and so on... and that right-wing propagandists are showing violence and damage that's literally not happening - well, where and when they imply that it happened, if it happened. The RNC pretended that violent imagery from Spain was Democrats being violent, for example. Fox used tape of burning buildings that had absolutely nothing to do with Portland in their coverage of such, for another. I could also add that when the George Floyd protests really started spreading, there were lots of videos and accounts that nearly all the people who were actively lawbreaking and looting were white people (especially the people who attacked black businesses) and that where the peaceful protestors were, they actively worked to dissuade and prevent such - and that a very significant amount of the chaos and harm that has occurred was fairly directly in reaction to lies and violence by the police.
Plenty more can be said, but... there has definitely been a bunch of condemnation of what violence there is - but also understanding that the issues in play are very, very ugly and entrenched, so venting outrage at the harm being done so that the people in power will actually DO something FINALLY can be understandable and that much, if not most, of the violence that has occurred has been wrongfully against peaceful protestors (which has much more broad effects on public order in general in response). You may well be seeing that understanding coming in play when it comes to Democrats being less willing to indiscriminately condemn everything - especially with the backdrop of right-wing propagandists screaming out lies and misdirection loudly and constantly. As for the MSM? They're largely focused on profits, of course, and rioters are much more attention-grabbing than peaceful protestors, so the coverage there tends to be rather disproportionate, too, albeit more likely to have far less direct spin.
I'm not sure how you would test that, since I don't think Republicans get separate briefings. You can correct me if I'm wrong.
You've missed how the Trump Administration is running things, now, I see? Understandable, given that it's easy to miss a lot of things in the chaos that the Trump Administration has been causing. Literally, they're briefing Republicans on a bunch of things that they are actively withholding from Democrats and have been doing so for a while. Not everything for the entire duration of Trump's Presidency, of course, but in recent months especially I've seen multiple stories about such happening, though they tend to get eclipsed pretty quickly.
With that said, IIRC, even some Republican lawmakers were getting fed up with how utterly terrible some of those briefings were and how the Trump Administration was failing to answer even basic questions that were raised. If you take that into account, them switching to written form is entirely understandable, both given their incompetence and given that it's much easier to delay and stonewall when dealing with the written word.
We need a montage of Democratic leaders, Mayors, Governors and Biden condeming the violence and repeating that defunding the police is a slogan, not a solution.
I've heard the suggestion that rather than DEfund, something more like SMARTfund is probably better. I don't disagree with the notion. Either way, something that's pretty much one of those things that aren't stressed enough is that more and more and more duties have been dumped onto the police as time has gone on and other services have been defunded. Waaaaay too much in far too much of the country to expect any group of people to be able to handle competently and well. Police are people, too, after all, and really shouldn't have so much dumped on them.
For that matter, though, the Republican Party has been making a long-term concerted effort to defund the police. Those who can police the rich and powerful, that is. Like the IRS.