You are probably right. I "cut the cord" over year ago and knocked my monthly entertainment bill down to $70 from $150. It was a tough at first. I've been a cable subscriber for over 20 years, always automatically subscribing to the service every time I moved without even thinking about the money. Once I considered the cost to the number of channels I actually watched ratio, it just didn't make any financial sense. So I decided to try cord cutting (a misnomer really). I also installed an antenna outdoors to get the local channels. I did miss a few channels at first, but it didn't take long to ween myself off. If I can't watch a particular show or can't get a particular channel, then it's not the that big of a deal. The media company just won't have me as a source of advertising dollars. Their loss, not mine.
And if what you say comes true with streaming services, then so be it. I'll just find other things to do. The big thing for me has been certain sports but I even found that I can live without that and just check the score and watch the highlights from a website. You ask why bother cutting cable; I ask why bother getting it in the first place.
While money doesn't buy love, it puts you in a great bargaining position.