1. I think this propaganda rose after Kosovar turmoil in the late '80-s and '90-s. This propaganda included historical figures such as Alexander the Great and Leonidas and so on being Albanian. It has happened exactly the same with the Serbs on the other part with their respective heroes. Basically this part is pure bullshit.
2. All scholars agree that Albanians in a way or other are descendants of Illyrians. The language, traditions, historical evidence suggest that way. Fortunately we can have our own beliefs regarding of the evidence.
3. I am afraid that Reddit (M'falni burra) is not the right place to gather evidence and opinion. It is not our expertise. After all we are all biased! 
4. If you are really interested in this topic I would suggest reading some serious scientific books. If you are trolling I would suggest to go on. After all none will achieve anything at the end of the day. αντιο σας!
包含语种1:English，语种2:Greek