Nobody is forcing you do buy from these companies. Just exercise your right as a customer to choose instead of demanding legislation.
While I agree with you on that note in general, I think the comment is also leaving out the huge power imbalances present once a company reaches a tipping point of influence. Apple for instance is now deeply ingrained in society. While not totally invincible, these companies can and do make decisions are made that only add to that power and do not really help the customer, some worse than others. Is what it is, but also could be argued is a huge problem.
At the end of the day, though, I probably side with you on that I am not in favor of legislation, except in extreme cases where power is being blatantly abused.