Israel determines the right of return via historical records as well as a DNA test to see who your parents are, and if that actually matches up with your records. You literally do not know how the stuff you complain about works.

Whites are not wholly and exclusively defined their religion, just geography. If you wanted to argue that, you'd say that Semites are a race, and that would include Muslims and Christians in the same way that Whites are also Muslims and Christians where as LOWER CASE J jews can never be Christian and can never be Muslims.

Atheist jews don't exist. Same way an atheist muslim doesn't. They're just typically American and European upper case w whites that are using Judaism as a shield the same way the would use being "pan-sexual" as a shield.

The Bolshevik leadership had a large number of what you're calling "ethnic jews" in it, but I can't even be sure that they were the majority of even that. Even then, hardly any of them would even be jewish since Marxist-Leninism is atheist.