There has been some confusion about this, so let me explain:...

Political parties or factions that appear to share power peacefully and in an orderly fashion among themselves, are actually collaborators, and in broad terms each sharer-in-power agrees to countenance the political programmes proposed by all the others. In this way, the factions collaborate in defining the range of acceptable political options, and thus the political direction, of the state.
The only secure means of diagnosing real opposition, is the resort to violence, judicial exclusion, lawfare or skullduggery against other pretenders to power. These tactics indicate a genuine political rift, rather than the mere pretence of one.

If you are in a political system in which power can be transferred PeAcEfUlLY among political factions, you exist in a single-party political system, and the factions are only apparent.
When the uniparty cartel breaks down and actual politics re-emerge, the whole criminal justice system gets turned on opposition candidates. They try to shoot opposition candidates in the head. They turn domestic spy agencies loose on opposition candidates. And so on.
These tactics are how you can recognise real politics, as opposed to fake politics: The instrumentalisation of state security services or criminal justice apparatus or random telegram-actrivated crazy people against the opposition is real politics. Trying to kill enemies is real politics. There are game-theoretical reasons for this. If you take the high road of non-skullduggery in conditions of Realpolitik, you're not going to win.
Hostile armies, however, are actual enemies – and the things that professional sports teams are intended to emulate (this is why they are interesting).