They quite literally are not, at least not in the US; half the states have right-to-work laws that prohibit this explicitly, and there are likely some protections even in the states that don't have a blanket protection.
I was there too. People always say this, but just because a thing changed once does not mean it will happen again. In this case, the population scale alone has changed by over an order of magnitude.
Just doing some quick searching - the first numbers that come up when you search for "how many people used the internet in the year 2000" are on the order of 350 million or so. Comparatively, now, in 2023, Reddit alone has some 450 million users. It would seem right now that Tiktok has about three times the number of active users than there were total Internet users 23 years ago.
Additionally, there are literally hundreds of billions of dollars now resting on Chrome remaining the dominant browser.
Short of government intervention (or absolutely monumental fuckup on Google's part somehow), Chrome is here to stay.
They quite literally are not, at least not in the US; half the states have right-to-work laws that prohibit this explicitly, and there are likely some protections even in the states that don't have a blanket protection.