The only ones who don't support crypto, are those who have never used or owned it.
It can't be underestimated how many unfortunates in the world were raised to think that learning, growing and trying new things are inherently bad. Especially when it comes to money. There's a powerful sentiment that says people could never be involved with stock markets, bonds, FOREX or crypto without being scammed and losing money. Many believe they should only use banks and rely on state approved programs like social security. Their basic education never covered hyperinflation or the great depression. They have 100% confidence that banks and government programs are reliable and safe. And everything else is a scam.
I think that's a key obstacle cryptocurrency must overcome, if it is ever to reach a high percentage of mass adoption.
Maybe it also helps to recognize the negative attitude which prevents many from using crypto, in ourselves, as a regressive thing.
I would say that even Banks do not get enough trust from the public, let alone something called crypto that they rarely know. Think about how big, literally HUGE banking world is and how many people do not trust them, there are many that do not use any banking at all but even the ones that use it do not trust them with a big margin. So, if finance world is seen as such a low life thing in USA, then how could we convince so many people to check crypto out.
I personally got into crypto so many years ago BECAUSE banks are horrible and I do not trust them, they are the worst scum in the world and that is why crypto was my alternative that I loved, but if I didn't know how trustworthy it is, I wouldn't join here neither, I fell in love with the decentralized aspect but my brain was capable of understanding it.
So, I do understand people who still hold judgment over what crypto is, the moment they truly understand it, they will join without a beat.