Once again, Barbara, this isn't a "controversial" opinion, it is a murderous one.
"Controversial" just means the media talking heads are talking about it. It's a propaganda tool that lets them discredit anything, sew doubt in the viewers'/listeners' minds, and divide and distract the population.
1) Pick an idea held by many people. (If that's because it's well-researched, produces prosperity and/or political stability, or otherwise sound, it's particularly suitable because it will be strongly held.)
2) Find some ideal held by a few that contradicts it. (If it's some unresearched or refuted-by-research tinfoil-hat idea, an attractive political ideology that leads to strife, etc. that's especially effectivce as well.)
3) Talk about them as if the first is in question and the second is just as well founded.
4) Because you're talking about them, label them both "controversial", thus lowering the credibility of the first and throwing the issue into doubt.
5) Confused viewers tune in to try to figure out which is right. Never tell them, so your raitings stay high.
6) Profit!
If this leads to children suffering from and dying of loathsome diseases, political strife, tyrannies, wars, economic collapse, and so on, laugh all the way to the bank and goto step 5).
People die because of this.
You betcha!
(And then they wonder why people are waking up, turning them off, and getting their news and analysis from the Internet.)