Anyone else fed up with incompetent tech support from the Philippines

I have a simple question. I want to change the DNS server on my router. Easy to do on EVERY router I've ever had. 

First call. After wrestling with their automated "support" bot for five minutes I'm finally routed to "technical support" in the Philippines. It's obvious the person I'm speaking with has no idea what I'm asking so I ask them to escalate to a level II tech. They put me on hold for 10 minutes then hang up.

Second call, same as the first but with even worse English skills. Evidently there is some penalty if they escalate a call so they put you on hold for 10 minutes, make it look good in the call log then hang up.

Third call, I tell the bot I'm canceling service so I get connected to a person in the US and ask to be connected to a Level II tech who speaks English. After a LONG hold I'm connected to the Philippines again. Girl simply doesn't have a clue. Absolutely none. Not her fault, it's obvious she's following a script and has no training but she keeps insisting she's an expert. I finally ask her "OK, tell my what a DNS server does?". Silence. Finally tells me she'll forward me to a supervisor. I leave the phone on speaker while I do more research online. Over 20 minutes later she comes back on. Still no "supervisor" available. I finally hang up.

What I did find while digging deeper on this forum is you cannot change the DNS server on Xfinity equipment. Are you friggin' kidding me?

After putting up with this sh!tty excuse for a company for the past five years AT&T is finally bringing fiber into our area this summer. The day they do is the LAST day I have Comcast.