It is an unfortunate state of the world is that those can use unethical moves to quickly crush others will live to fight another day. By the time the law catches up, they have made their billions.
It's a bit like saying that that them bundling PowerPoint together with their other apps is unfair towards any startup potentially wanting to enter that market. Which very well might be true but what's so special about Teams? MS and other companies have been bundling apps together since forever...