In regards to not answering the phone Blaine, I can relate.
I finally turned a feature on with my iPhone where it blocks all incoming numbers that aren't in your contact list, or numbers that you haven't called before. So unless I've called your number before, or you are in my contacts, my phone won't ring if you call me.
However, if you leave a voicemail I will get it. This is a new iPhone feature called "silence unknown callers", and it works really good.
The downside of course is that I occasionally miss calls from legitimate people. I have gotten to the point however, where if people don't leave me a voicemail, I won't return their call.
Before I turned that feature on, I was getting a solid 20 plus phone calls a day from out-of-state area codes, and others made to look like they were coming from right here in town.
They were all robocalls of course, and it was driving me batshit insane.
It's sad that this is what it's come to (like you said), but the amount of spam calls these days is truly alarming.