I am really surprised at your question, but I will give a simplified version of what I have said and explain the words I used.
My first post about this was clearly distinguishing between rioters (the subject of many western reports by the BBC, Guardian etc which referred to "rioters" from memory) and the peaceful protesters which were referred to in the tiktok video someone posted upthread in which they explain why they are "peacefully protesting against the rioters" - these are their words - if you look at that you will see why the distinction was made. But even giving those words their natural meanings will surely explain why the words were used? Rioters are generally understood to cause damage, maybe violence against other people or property, lighting fires, throwing things, etc etc whereas peaceful protesters generally is understood to mean people not being violent or causing damage?
Yes, language matters. I tend to try to use neutral, accurate language.
In terms of credible sources, you will need to watch the video I mention and see whether you find it credible. It shows huge numbers of people on the streets and contains interviews with many women as well as men. You either take it at face value or you don't. I have also mentioned youtube videos - none of these are reports, they simply walked through streets filming as they go, so you get to see unedited footage of real people going about their daily lives. And the only other report I mentioned was the PM of Iran talking about various things and the evidence Iran had - so this is a video of the PM talking and as such is credibly the PM talking - whether you personally accept what is being said is a different issue, the source itself is clearly what it says it is.
Is there anything else unclear? If I have by error used unclear wording I am happy to clarify and correct.