It many cases it proved to be advantageous to conform to the norm, to what you're peer group is doing, instead of going the other way and risk becoming an outcast. It takes a lot of strength and a very strong will to resist this natural tendency. It exists not only in humans but also in animals. Animals also display this type of behavior.
Not only there's this natural tendency to conform to what your peer group is doing, not to risk being left out, but there's often strong peer pressure that forces one adjust his or her behavior and thoughts to fit that of the group.
https://en.wikipedia.org/wiki/Peer_pressure
The major downside of conformity is being fine with holding wrong views for the sake of getting along, which may come to haunt you later on, since your peer group is seldom right. Individuals don't even realize this sudden shift that's occurring, that's most of the times a slow gradual process.
This is why very few people can exercise
freedom of thought, which is not to be confused with
freedom of speech. The latter is pretty much useless without the first. Most people want the freedom of speech so they can please their peer group and feel like an important part of the group.
https://en.wikipedia.org/wiki/Freedom_of_thought
"People demand freedom of speech as a compensation for the freedom of thought which they seldom use." - Soren Kierkegaard
I've noticed this debate from the bench, so to speak, since I've stopped carrying about Bitcoin few years ago. It stopped being exciting to me. The pro-core group has pretty much dominated this debate not only by having control over the main /r/bitcoin subreddit and control over the main bitcointalk forum but also by controlling the narrative via some heavily biased talk shows, where people only got to listen to one side of this debate.
People see things very black & white, high contrasts - good/evil, hot/cold, good/bad and so on (and that's another error in judgment due to how the human brain works, this binary thinking)
https://www.youtube.com/watch?v=J6bZG7vTUNM. Core supporters have been lead to believe they're fighting evil incarnate - the evil Chinese selfish miners lead by corrupt Jihan, that cheated using ASIC boost and Antbleed and self-serving Roger Ver, who's either naive or pumps altcoins or is in it with the Chinese miners because he's a miner himself, plus a bunch of devs that are more or less irrelevant since they are merely working for these evil Chinese miners. There's also famous Gavin in this camp, who is obviously a corrupting influence, co-opted by the CIA and so on and was rightfully removed from the Core team. And of course all these companies in the space like Bitpay and Coinbase that are so damaging to the ecosystem and somehow connected to evil Chinese miners that want to destroy Bitcoin and make it less decentralized and turn it into a centralized bankster controlled Paypal. And there's also this latest major scare, Craig Wright, the anti-christ fake Satoshi that came back from hell to steal control from Core. I've left out some elements but you get the idea. This is pretty much what the Core camp made people believe by controlling the narrative.
Of course, this fiction is just that, fiction. Things are never black and white and Core is not the angelic entity that's fighting the good fight just to keep Bitcoin decentralized and protect the average guy that wants to run a node on a RasPi. Since no one is paid to work on Bitcoin, active development is mostly handled by some key companies that have a profit incentive to work on Bitcoin. These companies like Blockstream, Lightning, Roostock and the VCs supporting them want side chains because that's how they hope to turn a profit. There's no profit for them in on-chain scaling. Increasing the blocksize will actually hurt their case. Blockstream patented side chain technology by the way. It's all part of a plan to make profit, which is perfectly fine by the way, but they're not open and honest about it and this is a taboo subject, something you're not allowed to say. Instead they've managed to persuade the average guy they're champions of decentralization fighting the evil banksters, when in reality they are the ones working for private investment bankers. The hypocrisy and virtue signaling is the issue here and them demonizing everyone that opposes their self-serving scaling agenda.
Is the Bitcoin Unlimited & co side free of sin and pure, as some people imagine Core to be? I'm sure they're not and I'm sure they've got a bunch of skeletons in their closet too, but that's not the point. People haven't been able to form an objective opinion since they haven't been allowed access to the information and I have to say the Bitcoin Unlimited camp did a poor job when it came to putting their message out there. Roger bought this domain and created this forum and had a bunch of talk show appearances but at the end of the day he's just one guy, that's also busy running a business and doesn't make his living out of live streaming Youtube videos like Tone Vays does.