Okay, here's a whole bunch I can think of off the top of my head.
Opposition to DEI initiatives, feminism, affirmative action, immigration, etc., are rooted in racism/sexism. Even dislike for certain movies is rooted in racism/sexism.
People are being stolen from and/or their privacy is being violated when companies use public data about them to train AI, target ads, etc. People get really mad about this.
On a similar note, AI art "has no soul" and AI artists aren't "real artists."
Hamas and/or Israel are evil. Pick whatever position you want on this conflict, there's a flood of propaganda pushing it and reasoned discussion that goes against it is hard.
Everything Elon Musk does is somehow evil or idiotic.
Cryptocurrency is a scam. AI is a scam. <insert some other new technology> is a scam.
Religion is bad.
All cops are bastards.
Unions are good and corporations are bad. Heck, the "capitalism is bad" message in this comic is itself propaganda.
Cancelling major NASA initiatives like Artemis or Mars Sample Return (or James Webb, Space Shuttle, etc. historically) would be a disaster for space exploration and science, despite their wildly spiralling costs.
Okay, that last one is perhaps getting down into the weeds of one of the more particular communities I find myself in. :)
Of course, there are other communities out there that I'm not commonly in that I expect have the opposite "everyone agrees" views on a lot of these things - DEI is part of some "gay agenda" conspiracy to groom children, Elon Musk is an infallible messiah, cops are the thin blue line protecting us from criminals, unions are destructive to the economy and cause unemployment, and so on and so forth. Propaganda is highly specific to its target audience, as this comic suggests.
The fundamental problem is just that in any significant group or community there are always hot-button issues that "everyone agrees" about, and attempting to question or discuss them with any nuance gets shouted down.