Cloudflare is half as old as Google and even younger than Amazon, yet your concern is with their monopolistic potential. Explain how that's possible if the companies at the top are maintaining all the control.

We've seen significant shrinkage among the FAANG and their peers in the past few years.

Walmart was considered a massive monopolist threat before Amazon came along and ate their lunch. These are examples that fly in the face of your contention.

What are some examples that support your argument that any of these businesses holds a de facto monopoly?

Again, the root cause of most of the monopolistic effects in our market are due to regulatory capture. Without regulations to set minimums for competitors, they face the threat of newcomers. This is why Walmart and other big organizations support minimum wage increases despite the negative impact on their bottom line. New supermarkets can't even begin to incorporate if they're faced with massive wage and regulatory requirements.