This is quite an assertion.
You are suggesting that the pool of faithful providers who request deposits (an unknown proportion of all escorts) is harming clients on net by requesting deposits, as they allegedly incentivize bad providers (another proportion of all escorts which is hard to precisely quantify) to request deposits too and run away with the money.
This is like saying all the Italian pizza shops in a NYC should be shut down because some pizza shops are partially fronts for fentanyl-laced drug dealing operations.
Imagine you, a client , live in the upper west side of Manhattan and you want a provider from Brooklyn to come and see you, and you have never met them/they have never met you.
What reason would they have to trust that you wouldn’t cancel on them and lead them to make a wasted 50-minute trip to you (costs a train fare) and then another wasted 50-minute trip to get back to Brooklyn (nearly 2 hours of time wasted along with transportation money)?
A world where deposits don’t exist is an unrealistic world, because if providers somehow could not ask for deposits, a lot of providers would not bother accepting booking requests. I suspect that some bottoms (who prepare considerably to have sex and may even change their diets for a booking) would simply not want to work if they couldn’t charge a deposit assuring their cleaning efforts, struggles, scheduling, transportation, and fees wouldn’t go to waste because of a flaky client.
It should also not be forgotten that providers themselves are targets of scammers, and deposits help weed those attackers out.