Actually, good news, they have! Google just lost its search monopoly trial with the US government, and they seem to be about to lose their advertising monopoly trial too. The US FTC also just released a report (not a legal action) concluding that all the big companies have abused data collection and recommended that the government do something to make those practices unprofitable for companies. I know the EU has also been doing some significant stuff, both against apple specifically and big gatekeeper companies generally. You can certainly argue it's not enough, and I would agree with you - but it's given me some optimism that more action and real enforcement might be in the near future in many countries.