I can appreciate people here love to try push progressive change and all, but sometimes this stuff pops up and it's clearly a clueless person trying to be profound for internet praise. As an actual libertarian, here we go...

The capitalist idea of liberty is Laissez-faire. Literally the foundation of capitalism. It is based on, private transactions being free from state intervention or regulation.

The underlying beliefs that make up the fundamentals of laissez-faire economics include the idea that economic competition constitutes a "natural order" that rules the world. Because this natural self-regulation is the best type of regulation, laissez-faire economists argue that there is no need for business and industrial affairs to be complicated by government intervention.

As a result, they oppose any sort of federal involvement in the economy, which includes any type of legislation or oversight; they are against minimum wages, duties, trade restrictions, and corporate taxes. In fact, laissez-faire economists see such taxes as a penalty for production.

This is literal liberty. It's not "capitalism's idea of it".

Since we're on Communism turf, what this meme is probably actually aimed at are the same criticisms of Laissez-faire we've had since the the 18th century, where passive entities in economics—landlords, funds, etc.—don't contribute to natural social economics, rather can economically impact others. However, since the ideology of Laissez-faire, and therefore most capitalist economies as we know them, is liberty which respects human rights, it's probably more the side-effects of a liberal concept that doesn't factor in arseholes—which are most. Depending where you land on the liberal spectrum depends on how willing you are to allow state intervention to control this aspect of society. This being anti-liberal in nature, but arguably more ethical depending on the balance of your personal views.

So I don't know what the meme's creator thinks liberty is, but basic rights, as a concept in libertarianism, are simply not meant to be encroached on. They are not a part of liberty, they are just respected by social contract to allow the benefits of freedom for all to flourish. It never will, though.

So, what it should say is...

The Capitalist idea of liberty can allow profiteering to encroach on the rights of others because as long as we live there'll be arseholes trying to take advantage of others no matter what ideology we try out. It's human nature, baby."