I hope I'm wrong but I don't think a privacy friendly alternative is going to exist. It's going to go the way of show me your drivers license to use my site.
Unlikely because there's basically no NIMBY-ism in India. Any developer can just acquire land, some air rights and plop up apartment complexes. And unlike in the US, apartments in India are designed for family life and aren't just for young / unmarried folks.
Man, you're really getting the short end of the stick here - it's actually pretty surprising because even though the forum is tech heavy, you wouldn't expect this much hate on consulting as a business model.
Outliers like the Opioid stuff aside, I do think most day to day typical things that consultants do is valuable work for companies. Say you're launching a new product and want to figure out cost based / value based pricing - it's either a single person in the company that does that that might not have a lot of experience in that area or a consultant from a consulting company that has a good track record at doing value based pricing specifically. I know who I'm going to pick.
The restaurants don't lose a full 30% on the order - the items on Uber eats are marked up over what you pay when you do regular takeout. I wouldn't go so far as to say they don't lose any money at all but we won't know exact numbers until Uber / restaurant owners publish them somewhere.
Also, having a delivery option I'm pretty sure provides additional business (on top of just having dine-in / pick up). So, for a restaurant to hire employees and building out a delivery service themselves will be much more hassle and probably will be more expensive than using a service like doordash / uber eats.
Lastly, this is driving a trend towards the so-called "cloud kitchens" letting restaurants operate with a subset of staff in cheaper to rent places and charging effectively what a regular restaurant would for a meal.
The restaurants are going through a paradigm shift now, and it will only be accelerated due to COVID - Cloud kitchens can be more sanitary / safer to order from than regular dine-in restaurants for instance but I don't really feel sorry for them. If anything, the drivers doing the delivery are the ones getting shafted here and barely making any money. If folks start tipping, it will simply mean that Uber can afford to pay drivers less - the amount a driver makes won't change very significantly.
Overall I'm convinced eats is the future and Uber focusing on ride share + eats + self driving (existential threat if someone else does it cheaper / better) is the right way to go for the company.