Is it discrimination if companies won’t hire me simply because I’m a level 3 registered sex offender, even though I’ve served my jail time ?

Not illegal dicrimination, no.

Yes, it is discrimination.  Companies are allowed to discriminate in their hiring, UNLESS it is against gender, race, religion, or other "protected classes". Being a registered sex offender is not a protected class.

No, the non employment doesn't state convicted  sex offenders can not be discriminated against for employment........most employers will not employ them as they are a risk to young/old/vunerable the business may come into contact/or work  with

Well what did you do? Were you an 18 or 19 year old who had a 15 year old girlfriend with overprotective parents who couldn't stand the thought of their daughter growing up, or are you a child rapist in your 30s or 40s? Big difference. If its the first one then yes it is discrimination people make mistakes in their youth. If it's the second one then no not discrimination and the employers are right to not hire you, no company wants a piece of trash who violates a child. 

Sorry but it’s not discrimination. You might want to consider a career where they are less judgmental about stuff like that

Not discrimination at all, they don't want a scum bag like you near any of their employees, or customers.

They could be sued when your perverted a$$ does it again, and it will.

However. Looking over your previous questions for the past 2 1/2 years. This is a fake question