An ISP's job is to provide internet access to last mile users, such as ourselves.
If they choose to reduce that speed for any reason, or throttle any kind of connection they are entitled to do that but they can't complain when someone else says that is what they are doing.
Personally, I think given how much public money has gone into infrastructure and the amount of money I pay in taxes it seems insane for me to first pay for the ISP's infrastructure with taxes then have to pay them again. So while they have a right to throttle, they don't have a right to throttle my connection on infrastructure that they did not pay 100% for. Which probably accounts for the majority of their infrastructure.
If they choose to reduce that speed for any reason, or throttle any kind of connection they are entitled to do that but they can't complain when someone else says that is what they are doing.
Personally, I think given how much public money has gone into infrastructure and the amount of money I pay in taxes it seems insane for me to first pay for the ISP's infrastructure with taxes then have to pay them again. So while they have a right to throttle, they don't have a right to throttle my connection on infrastructure that they did not pay 100% for. Which probably accounts for the majority of their infrastructure.