There are actually four pages in your book.
There are the right and the left, as you say... but also the statist and the individualist.
A leftist that thinks everything is best left up to the individual instead of a massive, powerful central government is much easier to tolerate. And for the left, the same goes for a conservative that believes the same.
It’s when politicians expand the size, scope, power, and authority of the central government... that politics gets vicious. As then, you can’t afford to lose - for if you do, you will then be forced to obey the whims of your political enemy.