Is the idea of soulmate(s) just a myth sold by the media? If you believe in soulmates, how can you know if that guy you know is your soulmate or it's just your brain romanticising him?

There has been way too many times I felt great chemistry with a guy (as in I genuinely clicked with them) and thought he might be "the one" only to later discover he's taken . I'm now starting to think if I'm interested in a guy, chances are other women will feel the same about him so he's probably taken before I even met him. And even if I did end up with the guy, he might not turn out to be HV. The older I am, the more I think of that gut feeling that someone may be your soulmate as just an illusion.