Everyone does this, it’s not unusual, but the consequences of doing so is naturally a leftist outcome. Leftism isn’t a random direction, with unrelated and disparate views, nor is rightism. Leftism is a selection of coherent and synchronous solutions to sets of problems using the same logical framework of analysis.
Leftism isn’t about “sticking to one train of thought,” and that’s a very myopic view of political ideologies in general.
Leftism is opposition to unjust hierarchy, yes, while rightism is entrenching it. Monarchism and Feudalism are right wing, as is Capitalism, as is fascism.
The basis of Socialism is of removing the unjustifiable hierarchy of the Worker/Owner divide. The basis of Communism is going even further and removing the statist element as well. Anarchism is additionally fully leftist.
Fence-sitting is appealing because many people benefit by supporting the status quo, or are ill-informed.