It doesn't matter if Apple has a monopoly or not, they can bully other companies all day long anyway since they got the most lucrative users and you can only reach them via Apple phones. If there is no law to handle this case then we need to create one since the current situation is obviously bad. It is kinda like how workers can get bullied by companies since the worker is so much smaller, Apple is way less dependent on app creators than the app creators are on Apple creating an unhealthy power imbalance. Such power imbalances needs to be regulated.