This is very incorrect. That's not what open minded means. But you should understand both sides right or wrong.
In fact, the tendency of people to say this is taken advantage of and they are manipulated.
One technique for doing so is called 'moving the goalposts'. What that means is, if people think one thing is 'in the middle' between two sides, they move the goalpost further so the new 'middle' is where the goalpost used to be. Repeat and what was radical is now the center.
Another is the 'big lie'. It was Hitler who noted, people easily catch small lies - but they fall for really big ones.
You might be reluctant to look at 'one of the two parties' and say they're hugely, massively wrong. They're counting on that.
But if they are - they are.
Getting more educated about this helps you not make the mistake of thinking both sides need to have some merit. Not always.
Let me give you a thought experiment.
The topic: What is 2+2?
Now, if one side says "2" and the other side says "6", your thinking both sides have merit - the answer is in the middle.
But what if one side says "2" and the other says "8000"? Your centrism says, 'well it should be around 4000 - no way it can be close to 2'.
Another part of 'the big lie' - the key part - is repetition. That's HOW the big lie gets accepted. The way the brain works, if it hers the big lie over and over and over, it tends to eventually accept it - and literally 'turns off' the part of the brain that would challenge the lie.
Studies show, if you show someone who is partisan names and pictures of things they're partisan about, the part of the brain with emotion activates in response, but the part of the brain that says 'is that true' doesn't activate. Their mind is made up.
This is a science, and there is big money that uses the science to influence public opinion. And they love to hear you say that both sides need to have some merit.
This is why, back when I had a sig here, it said "Ideology is the enemy." Now to be clear, I'm making two different points here - one is that both sides don't need to have merit, and the other is that you should question both.
This is why money is so corrupting in our system - a wrong and harmful conclusion has millions to spend to lie to the public, and there's little to no budget for the other side. There's a lot more spent to say 'climate change is fake' in the US than that 'climate change is real', for example.
And what do people say? Both sides have merit, right?