The truth is, it's only "Cancel Culture" if it's against something they like

No, people should be allowed to do as they please (assuming they aren't abusing the earth or other living beings), and boycotts are a useful tool for change.

But it's becoming the first tool people reach for, and that's not healthy. Kind of how force is sometimes necessary, but should be avoided as much as possible. Someone who jumps to force immediately is a scary person to empower.

Also, there is a noteworthy difference between boycotting something you don't like and boycotting whichever power is capable of cancelling the thing you don't like. It's definitely necessary at times, but it's not a great means to an end.

My mother read me this book as a child (https://en.wikipedia.org/wiki/The_Butter_Battle_Book) and the fact that overt force will be met with greater overt force until someone hits a limit (and nobody really wins) has stuck and has been very consistently reinforced in my life. I see cancel culture as pretty obvious show of force and no matter how much people might inflate its victories and minimize its short-comings, I see it netting out to roughly zero. It really just enables worse behavior on both sides.