> It should be noted that, empirically, all other economic systems that have been tried are even worse than capitalism as far as people's perceptions of their existence.
That's patently false. Socialist implementations like the USSR's lifted people from mud huts and being barefood to apartments and space age within the same generation. The only reason that it ran out of steam was because the US, who controlled 75% of world's resources at the time, started an all encompassing economic warfare and arms race to starve it of GDP by forcing it to allocate all to defense. Which is not something hypothetical or anything interpreted by historians - we have the Kennedy administration' internal memos and planning that envisaged this plan and implemented it. If ANYone did even a fraction of that to the US, the US would initiate a nuclear war as can be seen from the various examples during the Cold War. That the Soviets were way too less aggressive and they let themselves to be starved out of GDP has been a fortune for the human civilization for averting nuclear war.
> Socialist countries have border guards to keep their own people from escaping.
That's also a flat out lie that the system propagates to protect itself: Castro opened the doors of Cuba and told anyone who didnt want to stay to f... off in mid 1980. Yet the Cubans are there, except from a few who still think that the Muriel boatlift law is still in effect and they will be getting tens of thousands of dollars in US taxpayer money if they step into US soil from a boat. Otherwise they could just fly in. All the immigration from Cuba has been a few hundred thousand people, most of them people who had a good time during Batista and their relatives. Thanks to US taxpayer money, of course.
You could also leave the USSR at any time by paying back the free education and other services that the state, therefore the society, has given you for free. Which is not even an option in the US, for example - if you are born poor you just stay poor instead of someone giving you anything free.
> Capitalism does not enforce behavior patterns. You are free to opt out and be poor and not compete with others, if you want. You can be homeless, or subsist on minimum wage, or go on welfare benefits, and many do.
First, welfare benefits dont exist in capitalism. They are part of social democracy, first advocated by the socialists in the First Socialist International. So that's not the argument you want.
Second, all that you said do sound like enforcing of behavior. "You dont have to participate - you can just starve". Sounds utterly sociopathic.
> "Being unemployed" is a felony that gets you ten years in a forced labor camp.
There is no such thing anywhere. Don't make up falsities for argument. Doing the same in any country during wartime gets you the same kind of repercussion, including the 'democratic' ones who have all those written in as 'emergency laws'. If any rando like you ever knew what the 'emergency laws' in the most democratic countries involve, you would swiftly lose all the farcical illusions that you had about 'democracy'. Unfortunately such knowledge requires either special interest, or doing service in any NATO country's military or paramilitary tasked with enforcement of such laws. So that the masses like you can remain in blissful ignorance about the legal system that they live in...
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So basically capitalism is the best system solely because people like you believe in a lot of falsities and lies. Which is of course the only way to sustain a system that kills people when they cant pay for healthcare etc...