I'm sorry but this is a nonsense over thee top argument. This is the same as saying "do you support the rampant murdering of your opponents, and if you don't, why do you support anarchy?"
Everybody can make dumb statements like that.
Every system, be it communism, capitalism, anarchy or other can and will be abused. There will always be those trying to become a dictator type asshole, see Stalin, for example. The only way for any system to work well is to put laws in place to limit what cheaters can do. For capitalism that would be tax the shit out of he rich, anything over 10M in personal wealth should be taxed at 100%. There is no right for anyone to be extremely rich.
Capitalism has good parts and whether you like it or not, it's by extremely the most successful to move humanity forward . I have zero problems with a capitalist system that would work like this. Limit company sizes to 500 employees and a billion dollars max in value. Again, tax anything over thst at 100%.
This will get you loads of smaller companies that will have to compete for employees, it'll be easier to force them to obey the law.
This will get you a shit load of money in a government that can then use that for a socialist system that pays for free healthcare, free education, free housing, free great public transportation, etc.