I'm a retired engineer with some cows and not a trained economist but I have picked up a few things about econ and the business world over the years. For what it's worth:

• Ever since about the mid 1970s, public (stock issuing) corporations work to maximize profits for the STOCKHOLDERS. They do not operate in the best interests of their employees, suppliers, dealers or even their customers except as necessary to maximize profits for their STOCKHOLDERS. This is a basic concept that explains a lot of corporate behavior.
• US companies traditionally have looked to increase profits by selling higher volumes of products which usually resulted in keeping product selling prices low to keep volume up.
• European and especially German companies take a different approach to the US high volume theory. European companies would rather sell 10 products at $10 each to produce $100 in sales where American companies in the past strove to sell 100 products at $1 each to produce $100 in sales. An extreme example but hopefully shows the idea.
• American companies in many industries are finding it is a lot easier to produce fewer products and sell each at a higher price than to work hard to produce a lot of lower cost product.
• In a real, free, capitalist economy the thing that is supposed to keep prices in check and stop them from going through the roof is COMPETITION. If you charge too much you theoretically invite new competitors into your market.

Do you have any other constructive solution?

Corporations often hire PR (public relations) firms to monitor internet discussion boards related to their business.

Often these PR firms also offer "services" which include hiring nameless posters whose job is to cast doubt on threads and contributors which the corporation paying the bills doesn't like. Their job is at times also to divert the discussion away from the topics that corporation does not like.

The best antidote is to ignore these posts and posters.

They probably won't do it and in fact that further diverts the discussion from the topic at hand

Ignore the good old boys club and go right to Congress, your representative and senators.  They will respond if enough people contact them.

Boxed beef prices and retail prices far above the actual costs of production at some point qualify as "price gouging" and, along with obviously limited competition, is grounds for federal government action.

A groundswell of constituents (cattlemen and wholesale and retail beef customers) calling for action by their congressmen and senators can get something done and existing anti-monopoly laws enforced.

Engineers put men on the moon, Perseverance and helicopters on Mars, made breatheable oxygen from Mars atmosphere, and created the tools we're conversing on now, among other things.

Engineers don't start wars.

Most of the engineers I know are also good beef customers!

Good day sir.

Industries tend to move away from good competition when there are significant barriers to entry like high start up capital costs, high regulatory costs, etc. 

Barriers to entry

Here is the packing industry:

Oligopoly Structure

In an oligopoly market structure, a few large firms dominate the market, and each firm recognizes that every time it takes an action it will provoke a response among the other firms. These actions, in turn, will affect the original firm. Each firm, therefore, recognizes that it is interdependent with the other firms in the industry. This interdependence is unique to the oligopoly market structure; in perfect and monopolistic competition, we assume that each firm is small enough that the rest of the market will ignore its actions.

Increasing Returns to Scale

The existence of oligopoly requires that a few firms are able to gain significant market power, preventing other, smaller competitors from entering the market. One source of this power is increasing returns to scale. Increasing returns to scale is a term that describes an industry in which the rate of increase in output is higher than the rate of increase in inputs. In other words, doubling the number of inputs will more than double the amount of output. Increasing returns to scale implies that larger firms will face lower average costs than smaller firms because they are able to take advantage of added efficiency at higher levels of production.

Types of Returns to Scale

Most industries exhibit different types of returns to scale in different ranges of output. Typically in competitive markets, there could be increasing returns at relatively low output levels, decreasing returns at relatively high output levels, and constant returns at one output level between those ranges. Monopolies and oligopolies, however, often form when an industry has increasing returns to scale at relatively high output levels. When a few large firms already exist in this type of market, any new competitor will be smaller and therefore have higher average costs of production. This will make it difficult to compete with the already-established firms. Therefore, the oligopoly firms have a built-in defense against new competition.

Take the example of the cell phone industry in the United States. As of the fourth quarter of 2008, Verizon, AT&T, Sprint, and T-Mobile together controlled 89% of the U.S. cell phone market. The cell phone industry has increasing returns to scale: the cost of providing cellular access to 100,000 people is more than half the cost of providing cellular access to 200,000 people. Any new entrant into the cell phone market will either need to pay one of the larger companies for access to its already-existing network, or try to build a network from scratch. Both options result in higher costs, higher prices, and difficulty in competing with the major networks.

https://courses.lumenlearning.com/boundless-economics/chapter/prerequisites-of-oligopoly/