Lol, popularity vs monopoly is barely more than a matter of perspective. Google argues they don’t have a monopoly on ad services, they’re just the most popular (the government disagrees).
Every company I listed attempts to stop others from entering the market. TSMC holds the lions share of the market and works hard to keep it that way. They are also one of few foundry’s manucturing the highest end chips. Just because multiple companies use them as a foundry doesn’t mean they aren’t a monopoly over certain segments of the market. (Google is used by literally everyone).
If you’re interested in how the chip market is actually dominated by very few players, check out Chip Wars by Chris Miller.
This. In a case around LinkedIn courts ruled that in the US it’s legal to scrape publicly available data. The company doing the scraping was selling that data to corporate customers, but ultimately use might depend on the information you’re accessing and under what permissions. (Not a lawyer)