Most of my classmates would have been very interested in an academic career if they thought their chances were even one in ten and this was in a top tier program. And they were all totally willing to relocate too.
It's important to understand that in this context, willingness to relocate means willingness to spend your life outside your home country. Even in a large country like the US, there are often structural reasons why universities are not interested in hiring someone like you when you are in the job market.
For example, maybe a field such as ML starts getting popular. Universities respond by hiring new faculty, who in turn hire new PhD students. Almost a decade later, when those students have graduated and are in the job market, the demand may have stablized. Universities already have a plenty of faculty in that field and have little interest in hiring more.
Which means that if you chose a popular field, your chances of getting hired may be below the average. If you want to stay in the academia, your best bet may be moving to a country that didn't experience a similar hiring frenzy and is now trying to catch up.