Why doesn’t Denmark have as much controversy about social justice issues as do the US and the UK?

First, racial and ethnic tensions are not as acute because Denmark does not have the same history of slavery and colonialism. Slave trade was conducted in the Danish West Indies until 1848, but there is no segment of the Danish population that has descended from slaves and endured centuries of discrimination. There is an ethnic underclass, but only around 13 percent of the population has a foreign background. The largest group are the descendants of “guest workers” who came mainly from Turkey in the 1960s and 1970s. It is difficult to remember a case of the police killing a person of color person under suspicious circumstances.

Second, conditions for women are more favorable because of the extensive welfare state and a tradition of greater egalitarianism.

Third, the country has historically been one of the most tolerant towards LGBT+ groups. It was the first to recognize same-sex partnerships, and it legalized same-sex marriage in 2012. 

Fewer enemies
Fourth, the right-wing radicalism that provokes activism on the Left is less extensive and prominent. White supremacist and neo-Nazi groups are very small and are looked down upon by the general population. The extremist Stram Kurs (Hard Line) Party, which advocated deporting all Muslims, received 1.8 percent of the votes in the 2019 election and didn’t qualify for seats in Parliament.

Fifth, universities, where most social justice agitation and scandals have taken place in the US, have an infrastructure in Denmark that makes them less susceptible to activism. They are not residential colleges. There are some dormitories, but very few are located on campus. Many students commute from home or live in apartments. They do not congregate as often as American students in clubs and interest organizations and perhaps for that reason do not develop a tribal mentality. They are also more professionally oriented. They do not simply “go to college” to get a B.A. They choose their major fields when they apply and begin to specialize after one year. It is likely that more of them are more interested in pursuing their careers than in political activism. Additionally, they aren’t burdened by the prospect of a sizeable undischargeable debt upon graduation. 

Sixth, Twitter, which offers the quickest and easiest way to engage in ideological warfare, is less widespread in Denmark than in the US. Facebook is the most popular social media forum here. It does sometimes attract heated debate but has less rapid-fire escalation of denunciation and insult-trading and, in the extreme, mob frenzy. 

Marxism was here first
Seventh, the European socialist tradition already offered a theoretical framework and vocabulary for addressing social injustice. It was more firmly established and intellectually coherent than, say, Occupy Wall Street, Black Lives Matter and intersectionalism, which need to explain themselves. 

Eighth (a corollary of the preceding), there were already well-established political parties on the far Left with a voice in Parliament and influence on center-left administrations. The Red-Green Party’s platform is more extreme than the American progressive movement’s. Activists have a channel to promote their causes and need not always be an protest element that is not taken seriously.

Ninth (something that could have been mentioned first), some of the main objectives of the social justice movement have already been accomplished here, most obviously universal health care, tuition-free university, and policies to prevent environmental damage and climate change. There is not as much crony capitalism and lobbyist influence to protest against.

Tenth, children here are less “coddled” than Americans, as famously documented by Lukianoff and Haidt. They are less sheltered and are encouraged to be more responsible for themselves and therefore less likely to develop an entitlement and grievance mentality.

Biology 101 
Finally (and more speculative), both academics and, where relevant, politicians appear to be stronger adherents and defenders of free speech and a scientific viewpoint than their American counterparts. Denmark is proud of its democratic tradition, which is linked to its egalitarianism. It has high voter turnouts and numerous local organizations and cooperative housing associations founded and run by citizen groups that span socioeconomic strata. There is less tendency to attempt to silence and suppress opposing political positions and probably less need for students to insulate themselves from exposure to ideas that might make them uncomfortable.

I don’t know how deeply social constructionism has influenced the social sciences here, but I doubt that the natural sciences are seriously threatened by ideological campaigns to deny the distinction between sex and gender, for example. If university faculty are under less pressure because of the factors listed above, then there is less need for them to cede an evidence-based approach.