If everything I see in the news all the time makes me feel like the world is shit, well that's just unhealthy.
So I've subscribed to some good news channels on YouTube, and I try to limit the amount of bad news that I digest.
Staying informed of what's going on in the world is great, but not if it comes at the price of your sanity.
So read some good news, write a list of things you're grateful for, take a walk in a park, meditate in the sun a bit, and remember that overall people are kind (free open source software exists, volunteering exists, food banks exist, etc).
Another possible reason may be online dating.
https://youtu.be/x3lypVnJ0HM
Most people use online dating. Average looking men have very low chances to get a match because of : The much lower number of women on these platforms compared to men; which leads to the logical consequence of men lowering standards to increase their chances of getting a match; which of course leads to women being more selective causing a feedback loop that compounds on itself. So only the highly attractive men get a lot of likes and this leads to them being promiscuous which makes women think all men are assholes. And because finding a date is easy for women it's also very easy to ghost men for the smallest things.
And this whole system is also propped up by the Match group which owns all major dating apps in order to squeeze out as much as they can out of desperate people, basically monetizing loneliness.
When you swipe and swipe for months and only get one date and get ghosted right after, you start to devalue yourself, what other explanation can there be except that as a man you are horrible. And you spiral into depression and blame yourself (when in fact the whole system is wrong and is bad for both men and women).
Then suddenly comes a macho man who tells you that women are the problem, that it's not you (and that they also have courses to sell that will make you finally get women), of course you're gonna believe him, finally a way out of depression. A wrong way, a shitty way, but a way nonetheless.
These people are hurt and are acting out in the wrong way, leading to more hurting. And people like Andrew Tate are getting rich off of it.
PS: A long time ago OkCupid had you answering between 20 and a few hundreds of questions, plus answers you'd expect from your potential partner, plus how important that question is for you; and then it would show you a list of matched in order of compatibility. It was amazing. (but it got bought out by Match and turned into a tinder clone).