Leftist agitator, Saul Alinsky published an influential book in 1971, Rules for Radicals: A Pragmatic Primer for Realistic Radicals. Obama and Clinton both were weaned on it. I could not find a copy of the book, but here are the rules, thanks to Wikipedia:

1.    “Power is not only what you have, but what the enemy thinks you have.” Power is derived from 2 main sources – money and people.
“Have-Nots” must build power from flesh and blood.
2.    “Never go outside the expertise of your people.” It results in confusion, fear and retreat. Feeling secure adds to the backbone of anyone.
3.    “Whenever possible, go outside the expertise of the enemy.”
Look for ways to increase insecurity, anxiety and uncertainty.
4.    “Make the enemy live up to its own book of rules.” If the rule is that every letter gets a reply, send 30,000 letters. You can kill them with this because no one can possibly obey all of their own rules.
5.    “Ridicule is man’s most potent weapon.” There is no defense. It’s irrational. It’s infuriating. It also works as a key pressure point to force the enemy into concessions.
6.    “A good tactic is one your people enjoy.” They’ll keep doing it without urging and come back to do more. They’re doing their thing, and will even suggest better ones.
7.    “A tactic that drags on too long becomes a drag.”
Don’t become old news.
8.    “Keep the pressure on. Never let up.” Keep trying new things to keep the opposition off balance. As the opposition masters one approach, hit them from the flank with something new.
9.    “The threat is usually more terrifying than the thing itself.” Imagination and ego can dream up many more consequences than any activist.
10.    “The major premise for tactics is the development of operations that will maintain a constant pressure upon the opposition.” It is this unceasing pressure that results in the reactions from the opposition that are essential for the success of the campaign.
11.    “If you push a negative hard enough, it will push through and become a positive.” Violence from the other side can win the public to your side because the public sympathizes with the underdog.
12.    “The price of a successful attack is a constructive alternative.” Never let the enemy score points because you’re caught without a solution to the problem.
13.    “Pick the target, freeze it, personalize it, and polarize it.” Cut off the support network and isolate the target from sympathy. Go after people and not institutions; people hurt faster than institutions.”

All pretty nasty stuff, I agree. But, war is an unpleasantry.
See here: https://en.wikipedia.org/wiki/Rules_for_Radicals.

These tactics have been used against both Pauline Hanson and Donald Trump. At the moment, the Australian elites are being careful in handling Hanson, but Trump is copping ridicule full measure by the arrogant Hollywood actors, as seen at the Oscars. Most of these people were taken apart in the satirical movie, Team America: World Police (2004), the only self-critical film from Hollywood, deconstructing Hollywood: https://en.wikipedia.org/wiki/Team_America:_World_Police. It is worth a Captain Cook. The screw up of announcing the wrong movie at the Oscars as best picture means that one should not worry too much about Hollywood.

Unfortunately, Traditionalists have not been good at this style of fighting. It would be logical to fight fire with fire, but there is a feeling that we should not stoop to their level. Most of the people saying this are a bit too young to have fought in World War II,  Vietnam, or Iraq,  or else they did not see active combat. The work and writings of Bernard Gaynor are a good example of the kind of rugged manliness needed in this fight.

Really, one cannot win with a holier-than-thou moralism. Our enemy does not seek to argue with us, but to destroy us. Millions of people have already died in this conflict. Are their sacrifices to be in vain because unrealistic moralism? Or, is this just an excuse for cowardice?

At a minimum, ridicule and relentless trolling, all within the boundaries of the law, should be used wherever possible. Do not offer respect for your enemy: http://www.theoccidentalobserver.net/2017/02/saul-alinskys-rules-for-radicals-as-applied-in-the-trump-era/. As Aragon says in The Two Towers (2002) film version: A Eruchîn, ú-dano i faelas a hyn an uben tanatha le faelas (Show them no mercy, for you shall receive none).