I regret not saying "net neutrality" as the reason for cancellation when I cancelled my Xfinity last week. I instead said "Unusable upstream bandwidth when 3-4 people are doing remote work/learning". We just got municipal fiber and it's committed to Net Neutrality, and gigabit up and down.
Aside: They spent several minutes up front establishing rapport (I kid you not "You sound like such a nice person!") then when I said I was calling to cancel service he turned it into a personal slight ("I thought we were friends, why would you do that!").