We can't. They will play the 'victim' card, and the 'race' card and use that to silence us (recall Ann Coulter's discussion of "victims" and how they use their "victimhood" as a weapon to silence dissent).
We can make the same points about almost anything they do, but we can't be as ugly and hateful about it as they are--and we cannot do it in such a way that they can use our delivery of concept as a weapon against us to silence us.
That is their objective, not debate, not just harrassment, but looking for an excuse to muzzle us, completely and permanently--to eliminate opposition.
We can politely say we dislike the way the members of the 'first' family represented America, how they appeared declasse, how it is a pity some of the money spent on $5K purses wasn't spent on the daughter's wardrobe, maybe someone could reccommend a better thrift store, etc., but the second someone makes a remark which can be construed as "racist", we lose.
Enough of those remarks and we won't be making them on the web, because that will become the ammo used by the Obamites when they purge "hate" sites from the web.
You already know how the "hate" thing works--look at the rules for a crime being a "hate crime". There isn't a level spot on the playing field.
This is a war of wits, and we'd better use the tools appropriate to the venue.
If it ever gets more bare knuckle than that, we can take the gloves off and use whatever is necessary, but we are not there yet.
If we really believe that the left can “muzzle us, completely and permanently—to eliminate opposition”, then I would suppose that those holding that opinion have already lost.
If we follow your “we cannot do it in such a way that they can use our delivery of concept as a weapon against us to silence us”, then why bother to hold a strong conservative opinion on anything? You will never gain an upper hand with that attitude. We can be nice till the dawn breaks, but all that ever does is to make us look cowed when the first clueless leftists shouts the newest PC mantra. IMO, we are dammed by the left if we do, and dammed by the left if we don't.
Times have changed, and I for one see what is going to happen with a weak position and a defeatist attitude.