That assumes all people on the planet though. 2 billion people are under 15 and 1 billion are over 65 though (https://ourworldindata.org/grapher/population-by-age-group). That leaves about 4.5 billion people. Taking marriage into account, in the US and the EU, roughly the number of people who are currently married that are adults is 40% (https://onlinemftprograms.com/worldwide-marriage-statistics/). If we assume that to be true worldwide, that reduces the number to about 2 billion. Therefore, if you are between 18-50 and assuming the number of people who find you attractive is 1%, the number of potential partners who think you are attractive is closer to 20,000,000. That also excludes people already in relationships who are not married. Still a lot of fish in the sea nonetheless.
Let's do this with my county, and add in the gay clause!
So roughly 40k population. Around half are women, so let's go to 20k. Around 10% are gay/bi/pan so 2000.
Now 1% of that 2000... I'm looking at roughly 20 people. Of which the odds of them being in my age range, single, and not a meth head, a religious nutjob, or so totally anti religious as to prohibit us interacting is very, very slim. Add into that that I don't think I could form a bond with someone who doesn't share left wing, or at least progressive, tendencies... And... Yeah. I need to get the fuck out of this county and into a city, asap!
You sign up to volunteer for Ukraine, then when you meet in the battlefield, you look at each other, realize that you two are true soulmates, and drop your weapons and hug. Now kiss.
Everyone around you looks in awe, every soldier drop their weapons, a truce is called. Soldiers refuse to fight. Putin then gets so mad he accidentally trips and fall out a window.
This does nothing for my self esteem, but it does serve as a functional reminder that 1% is a large percentage of high numbers and many things have a much lower likelihood than 1%, even though humans tend to be biased to believe otherwise.
Then you're still good. 75,000,000 - 1% = 74,250,000.
Now, if you only find, say, 1% of people attractive, because you subscribe to ridiculous artificial beauty standards while also complaining that everyone applies those same artificial standards to you, then you've got a bit of a problem.