I have no problem with call center worker with accents, I have a problem with call centers that are basically a human reading me an FAQ with no power to solve my problem. They have basically become heatsinks for frustration, not a way to get help.
Call centers are more like heat pumps for frustration.
There is so much terrible design in both automated and human customer support. For instance, you ask a question in chat and there is no response for a few minutes. After a few minutes, you'll see the 'typing ..' indicator, but it'll be some generic bullshit platitude about how they value you or something. This is frustrating to no end. Even in voice systems, there is so much drivel. "It'll be just a moment while a look this up ", and then some keys clacking in the background. Who falls for this ?