If you don’t want either one to win, there is no way for you to legally make that happen.

So if you accept that is true, and you have a preference among the two parties, that is where pragmatism suggests voting against the greater evil.

But if you honestly have little to no preference, then you won’t care about the so-called consequences of voting third party, and can do whatever.

I mean obviously you can always do whatever you want. This is just the game theory you’re thinking that means we need to change our voting system before the two-party lock-in would even start to loosen.