If I can interject - I don't think the OP is showing an unpopular opinion. The people they're talking to aren't mad. It looks to me like an opinion whose wisdom isn't generally accepted - and there's a difference.

Unpopular opinion: pedophilia is a mental disorder; child rape (including "statutory" rape) is an act of violence, cruelty, and power - or, in arguably the worst case, crimes of opportunity. Not all child rapists are pedophiles and not all pedophiles are child rapists. Pedophiles should be treated; child rapists should be imprisoned forever. (Those that are in the overlap can be treated in prison.)

This opinion is (I think) probably true, but if you go around talking about it, you will be unpopular.

Unaccepted opinion: well, there are a lot of them here, but this one - about teachers - could be tweaked into one: the only way we are going to see changes that would actually benefit our society and country, the things the news and politicians say are "luxury expenses" - aka health care, teachers' salaries, rent and real estate regulation, etc - is with a general strike. The propaganda and gaslighting and victim blaming are so deeply entrenched that they have become the most profitable sectors of our economy.

This opinion is - again, in my opinion - probably true, and there are a lot of people who agree - but not enough. If the crowd in that picture represents a country of 350 million, then that one person represents maybe 0.5-1 million people? Which is way more than the supporters of a general strike.

Why did I say all that? Mostly because I'm bored - but I think it's a neat distinction to make.