Amen. BUT, be aware that the delivery assholes often hijack restaurants' online presence and put up fake phone numbers that go to the middleman, not the restaurant.
Also some restaurants have apparently started contracting out some of their 'normal' deliveries to these entities, so it can be difficult to avoid them entirely even if you're deliberately trying not to do business with them.
my local papa johns franchise outsourced its delivery to... doordash :-/
Someone else reported that some Pizza Huts are doing this as well. I believe Dominos still uses only their own employees to deliver.