IANAL (and law differs around the globe) but...
discrimination is prohibited towards protected categories. i.e. gender, ethnicity, sexual orientation... on top of it, most of those aren't things that you choose yourself.
With the possible exception of religion (you're born into a certain culture, so "by default" you might feel affiliated to a certain religion, so asking people to renounce that would definitely be oppressive), and veteran status (which is not a protected category around the world, I think... though it is in the US)
If you self-select into a segment of the population that no one is born into[1], yet it's lawfully discriminated against (i.e. felons ITT) I'm afraid that you don't have a good case to protect yourself from such discrimination.
[1] Unfortunately, systemic racism and the plea/prosecutors/bail system make it so that people in certain segments of the population are more likely than others to end up involved in crimes.