Why? That isn't a test for being biased in favor of the truth. A lot of people try and say being "unbiased" means you don't favor one side or the other. That's BS. Both "sides" are not created equal. I hate the Republican Party, and they are full of spineless liars, but by and large they are not psychotic like the Democrat Party has become. They're not pushing to have kids amputate their twig and berries and boobs and give them puberty blockers. They don't say men can get pregnant. They don't engage in massive censorship.
What I often do is point out the chronic problems, dangers, and hypocrisy I see with liberals/progressives. I don't need to do the same for conservatives and Republicans, because all you need to do for that is turn on or read almost any news sources.
I am a stickler for details so, warning, you will hate me for posting this little annoying fact, but the definition of bias is:
prejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair.
"there was evidence of bias against foreign applicants"
In reality, all people are products of their environment and so it is only natural we have some bias... which in practice really just means we have an opinion. It would be a sad world if none of us had an opinion about anything. In that were the case we'd be not much more than amoebae.