The point being told to you is that there's no guarantee any ideology can't be used to justify atrocity.
Hell, in the real world everyone has to live in and try to ignore, the 'slippery slope' is supposed to be a thoughtful reminder not to push things that far, and avoid hypocrisy to maintain the moral high ground in the right-to-rule behind any government peaceful transfer of power, but all too often it keeps the victims' hands tied behind their backs when an ideology has had a century to become an oppressive cult.
American MAGA conservatism is just ramping up toward the nerve to kill 65k+ dissenters, they are just waiting for a 10 million Democrat March on the White House to do it.
They also don't have enough control of the military to ensure enough bootlickers won't disobey orders at the last second despite the existence and willingness to use drone technologies on US civilians.
You'll see a mass casualty event from US Maga in the next 10 years, then it'll be proven it's not just Communism in Eastern European countries but mostly the wealthy manipulating propaganda in ways beyond their understanding.
Consider how much the wealthy are lamenting Trump's economic protectionism now, they won the culture war and got rid of what they felt were social shackles they were forced to operate under to maintain their identities but were too fucking stupid to understand that without operating under those rules they handed the keys to an insane monster and will now lose their businesses over it. Everyone that is not working in the defense industry is at risk of this including the AI companies themselves if, and when, tariff protectionism causes a Great Depression shortly after the 2026 mid-terms in the USA.
The wealthy just aren't nearly as smart as they hope their wealth indicates they are, there simply isn't enough bandwidth in a human life to master enough of a well rounded education to BE that smart and still remain wealthy. It's why there are no ethical billionaires because they just aren't smart, empathetic people. If they're smart and empathetic they probably aren't rich for good reason.
For example consider how many atrocities in Asia between China, North Korea and India/Pakistan, not even considering Afghanistan, that all have had nothing to do with Communism being a murderous ideology in and of itself to force out capitalism or religion as controlling factors for governance.
And of all of the above, religion by far has done admittedly the most good for the world, but also the most evil, and as far as evil goes it's not even remotely close. It's about to do it again when MAGA drags it's capitalist and AI/crypto bro factions along for the ride.
Yet for good in the world, there's a lot of more recent inventions and liberal governing policies in the running improving quality of life more than religion if the economics of distribution could only be controlled to below at-market values.
The American phrase 'The Tree of Liberty must be watered by the blood of Patriots and Tyrants from time to time' is a distinct reminder of what it costs to rectify exactly the type of cult propaganda the US Republican Party has been pushing since America's first Civil War in the 1800's and the Reconstruction Era afterward. It's a reminder that words and democracy fail from time to time and there must be violent conflict to remind everyone every century or so why violent conflict is a REALLY BAD IDEA for all the world's economies because no matter how much the GOP tears apart the US economy, globalization isn't going away and neither are it's negative second order impacts on the poor and middle class in the US competing against rising middle class in other countries.
Protectionism is no protection against globalization either which is the core economic argument of MAGA cult behavior, they will commit as much violence as it takes to try to implement protectionism to attempt to recreate a manufacturing and agriculture dominated middle class in the Information Age and it will 100% fail while they need fascist Information Age allies.
Communism isn't unique in any of these regards whatsoever in terms of how it fails or the violence with which it ejects its political dissenters, that's a management problem not an ideology problem. It's also an inevitable part of every country's history to explode in violence every century or so to address income inequalities or political influence inequalities.
that has to be some kind of oximoron, regarding Alexis de Tocqueville in his Democracy in America.