Franglais:
How do you “make your own mind up”?
Presumably from information? From facts you have learned somewhere?
If you read the Mail, Express, Sun, listen to Talk Radio, you will hear a biased view of the world.
When you accidently hear a less biased view it will seem extreme or false to you.
If you read a few online articles about Ferraris and TV presenters called Holly, then your browser will send you more of the same. Read about COVID being a hoax or a minor issue and you’ll get more of the same. That’s how we can all end up in echo chambers.
Read articles on Red Top sites, scroll down and there will be links to Euro Sceptic articles. Even if you only read the headlines (especially if you only read the headlines) and you’ll get the editor’s and owner’s view of the world. Only a few lines, but each little bit will enforce the others.
If you (not just Mr RobRoy of course) want to “make your own mind up” think about how your get your facts to do your own thinking.
The exact same thing can be applied to yourself Franglais, with your views on EU and Covid when you repeat the official lines on here parrot fashion, in order to convince…well me basically. 
I don’t need the media to influence my opinions,…sure I’ll.read and hear about the same story from both sides, but firstly I tend to filter out the hype and filter out the sensationalist bull ■■■■…which are the ingredients conciously put there to form popular opinion in the country. 
So in my own personal opinion making my own mind up after conciously listening to both biased negative and positive opinions has worked for me in life so far thanks.
If what you say was applicable to me in say football for eg, which I love, I would not be supporting Newcastle Utd,.I’d be walking around dressed in red and going to Old Traffird on a Saturday (omg the shear thought of it
)
Also how many times have you heard somebody say ‘‘Don’t trust him, he’s a wrong un’’ , or the time I applied for a job with a firm that was ‘‘known’’ to run you ragged, but turned out to be the best job and firm I’ve had…again populist b/s, or girls I’ve been warned off as a lad, who have been ok in the end…dammit. 
So taking stuff on board,.but at the same time not readily believing what the sheep and the easily led say, but making my own mind up in every aspect of life works for me.
Does that explain what I mean?
Btw ‘TV presenters’…have you been hacking into my browser history? 